818888980

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{199}}^1$

素因数の和:271

約数の個数: 288

約数和(自身を含む): 2413152000

約数和(自身を除く): 1594263020

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 17, 19, 20, 26, 28, 34, 35, 38, 49, 52, 65, 68, 70, 76, 85, 91, 95, 98, 119, 130, 133, 140, 170, 182, 190, 196, 199, 221, 238, 245, 247, 260, 266, 323, 340, 364, 380, 398, 442, 455, 476, 490, 494, 532, 595, 637, 646, 665, 796, 833, 884, 910, 931, 980, 988, 995, 1105, 1190, 1235, 1274, 1292, 1330, 1393, 1547, 1615, 1666, 1729, 1820, 1862, 1990, 2210, 2261, 2380, 2470, 2548, 2587, 2660, 2786, 3094, 3185, 3230, 3332, 3383, 3458, 3724, 3781, 3980, 4165, 4199, 4420, 4522, 4655, 4940, 5174, 5572, 6188, 6370, 6460, 6766, 6916, 6965, 7562, 7735, 8330, 8398, 8645, 9044, 9310, 9751, 10348, 10829, 11305, 12103, 12740, 12935, 13532, 13930, 15124, 15470, 15827, 16660, 16796, 16915, 17290, 18109, 18620, 18905, 19502, 20995, 21658, 22610, 23681, 24206, 25870, 26467, 27860, 29393, 30940, 31654, 33830, 34580, 36218, 37810, 39004, 41990, 43316, 43979, 45220, 47362, 48412, 48755, 49153, 51740, 52934, 54145, 58786, 60515, 63308, 64277, 67660, 72436, 75620, 79135, 83980, 87958, 90545, 94724, 97510, 98306, 105868, 108290, 117572, 118405, 121030, 126763, 128554, 132335, 146965, 158270, 165767, 175916, 181090, 185269, 195020, 196612, 205751, 216580, 219895, 236810, 242060, 245765, 253526, 257108, 264670, 293930, 307853, 316540, 321385, 331534, 344071, 362180, 370538, 411502, 439790, 449939, 473620, 491530, 507052, 529340, 587860, 615706, 633815, 642770, 663068, 688142, 741076, 823004, 828835, 835601, 879580, 899878, 926345, 983060, 1028755, 1231412, 1267630, 1285540, 1376284, 1539265, 1657670, 1671202, 1720355, 1799756, 1852690, 2057510, 2154971, 2249695, 2408497, 2535260, 3078530, 3149573, 3315340, 3342404, 3440710, 3705380, 4115020, 4178005, 4309942, 4499390, 4816994, 5849207, 6157060, 6299146, 6881420, 8356010, 8619884, 8998780, 9633988, 10774855, 11698414, 12042485, 12598292, 15747865, 16712020, 21549710, 23396828, 24084970, 29246035, 31495730, 40944449, 43099420, 48169940, 58492070, 62991460, 81888898, 116984140, 163777796, 204722245, 409444490, 818888980]

約数ペア:

[(1, 818888980), (2, 409444490), (4, 204722245), (5, 163777796), (7, 116984140), (10, 81888898), (13, 62991460), (14, 58492070), (17, 48169940), (19, 43099420), (20, 40944449), (26, 31495730), (28, 29246035), (34, 24084970), (35, 23396828), (38, 21549710), (49, 16712020), (52, 15747865), (65, 12598292), (68, 12042485), (70, 11698414), (76, 10774855), (85, 9633988), (91, 8998780), (95, 8619884), (98, 8356010), (119, 6881420), (130, 6299146), (133, 6157060), (140, 5849207), (170, 4816994), (182, 4499390), (190, 4309942), (196, 4178005), (199, 4115020), (221, 3705380), (238, 3440710), (245, 3342404), (247, 3315340), (260, 3149573), (266, 3078530), (323, 2535260), (340, 2408497), (364, 2249695), (380, 2154971), (398, 2057510), (442, 1852690), (455, 1799756), (476, 1720355), (490, 1671202), (494, 1657670), (532, 1539265), (595, 1376284), (637, 1285540), (646, 1267630), (665, 1231412), (796, 1028755), (833, 983060), (884, 926345), (910, 899878), (931, 879580), (980, 835601), (988, 828835), (995, 823004), (1105, 741076), (1190, 688142), (1235, 663068), (1274, 642770), (1292, 633815), (1330, 615706), (1393, 587860), (1547, 529340), (1615, 507052), (1666, 491530), (1729, 473620), (1820, 449939), (1862, 439790), (1990, 411502), (2210, 370538), (2261, 362180), (2380, 344071), (2470, 331534), (2548, 321385), (2587, 316540), (2660, 307853), (2786, 293930), (3094, 264670), (3185, 257108), (3230, 253526), (3332, 245765), (3383, 242060), (3458, 236810), (3724, 219895), (3781, 216580), (3980, 205751), (4165, 196612), (4199, 195020), (4420, 185269), (4522, 181090), (4655, 175916), (4940, 165767), (5174, 158270), (5572, 146965), (6188, 132335), (6370, 128554), (6460, 126763), (6766, 121030), (6916, 118405), (6965, 117572), (7562, 108290), (7735, 105868), (8330, 98306), (8398, 97510), (8645, 94724), (9044, 90545), (9310, 87958), (9751, 83980), (10348, 79135), (10829, 75620), (11305, 72436), (12103, 67660), (12740, 64277), (12935, 63308), (13532, 60515), (13930, 58786), (15124, 54145), (15470, 52934), (15827, 51740), (16660, 49153), (16796, 48755), (16915, 48412), (17290, 47362), (18109, 45220), (18620, 43979), (18905, 43316), (19502, 41990), (20995, 39004), (21658, 37810), (22610, 36218), (23681, 34580), (24206, 33830), (25870, 31654), (26467, 30940), (27860, 29393)]