291222120

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{257}}^1$

素因数の和:368

約数の個数: 256

約数和(自身を含む): 1069977600

約数和(自身を除く): 778755480

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 19, 20, 21, 24, 28, 30, 35, 38, 40, 42, 56, 57, 60, 70, 71, 76, 84, 95, 105, 114, 120, 133, 140, 142, 152, 168, 190, 210, 213, 228, 257, 266, 280, 284, 285, 355, 380, 399, 420, 426, 456, 497, 514, 532, 568, 570, 665, 710, 760, 771, 798, 840, 852, 994, 1028, 1064, 1065, 1140, 1285, 1330, 1349, 1420, 1491, 1542, 1596, 1704, 1799, 1988, 1995, 2056, 2130, 2280, 2485, 2570, 2660, 2698, 2840, 2982, 3084, 3192, 3598, 3855, 3976, 3990, 4047, 4260, 4883, 4970, 5140, 5320, 5396, 5397, 5964, 6168, 6745, 7196, 7455, 7710, 7980, 8094, 8520, 8995, 9443, 9766, 9940, 10280, 10792, 10794, 11928, 13490, 14392, 14649, 14910, 15420, 15960, 16188, 17990, 18247, 18886, 19532, 19880, 20235, 21588, 24415, 26980, 26985, 28329, 29298, 29820, 30840, 32376, 34181, 35980, 36494, 37772, 39064, 40470, 43176, 47215, 48830, 53960, 53970, 54741, 56658, 58596, 59640, 68362, 71960, 72988, 73245, 75544, 80940, 91235, 94430, 97660, 102543, 107940, 109482, 113316, 117192, 127729, 136724, 141645, 145976, 146490, 161880, 170905, 182470, 188860, 195320, 205086, 215880, 218964, 226632, 255458, 273448, 273705, 283290, 292980, 341810, 346693, 364940, 377720, 383187, 410172, 437928, 510916, 512715, 547410, 566580, 585960, 638645, 683620, 693386, 729880, 766374, 820344, 1021832, 1025430, 1040079, 1094820, 1133160, 1277290, 1367240, 1386772, 1532748, 1733465, 1915935, 2050860, 2080158, 2189640, 2426851, 2554580, 2773544, 3065496, 3466930, 3831870, 4101720, 4160316, 4853702, 5109160, 5200395, 6933860, 7280553, 7663740, 8320632, 9707404, 10400790, 12134255, 13867720, 14561106, 15327480, 19414808, 20801580, 24268510, 29122212, 36402765, 41603160, 48537020, 58244424, 72805530, 97074040, 145611060, 291222120]

約数ペア:

[(1, 291222120), (2, 145611060), (3, 97074040), (4, 72805530), (5, 58244424), (6, 48537020), (7, 41603160), (8, 36402765), (10, 29122212), (12, 24268510), (14, 20801580), (15, 19414808), (19, 15327480), (20, 14561106), (21, 13867720), (24, 12134255), (28, 10400790), (30, 9707404), (35, 8320632), (38, 7663740), (40, 7280553), (42, 6933860), (56, 5200395), (57, 5109160), (60, 4853702), (70, 4160316), (71, 4101720), (76, 3831870), (84, 3466930), (95, 3065496), (105, 2773544), (114, 2554580), (120, 2426851), (133, 2189640), (140, 2080158), (142, 2050860), (152, 1915935), (168, 1733465), (190, 1532748), (210, 1386772), (213, 1367240), (228, 1277290), (257, 1133160), (266, 1094820), (280, 1040079), (284, 1025430), (285, 1021832), (355, 820344), (380, 766374), (399, 729880), (420, 693386), (426, 683620), (456, 638645), (497, 585960), (514, 566580), (532, 547410), (568, 512715), (570, 510916), (665, 437928), (710, 410172), (760, 383187), (771, 377720), (798, 364940), (840, 346693), (852, 341810), (994, 292980), (1028, 283290), (1064, 273705), (1065, 273448), (1140, 255458), (1285, 226632), (1330, 218964), (1349, 215880), (1420, 205086), (1491, 195320), (1542, 188860), (1596, 182470), (1704, 170905), (1799, 161880), (1988, 146490), (1995, 145976), (2056, 141645), (2130, 136724), (2280, 127729), (2485, 117192), (2570, 113316), (2660, 109482), (2698, 107940), (2840, 102543), (2982, 97660), (3084, 94430), (3192, 91235), (3598, 80940), (3855, 75544), (3976, 73245), (3990, 72988), (4047, 71960), (4260, 68362), (4883, 59640), (4970, 58596), (5140, 56658), (5320, 54741), (5396, 53970), (5397, 53960), (5964, 48830), (6168, 47215), (6745, 43176), (7196, 40470), (7455, 39064), (7710, 37772), (7980, 36494), (8094, 35980), (8520, 34181), (8995, 32376), (9443, 30840), (9766, 29820), (9940, 29298), (10280, 28329), (10792, 26985), (10794, 26980), (11928, 24415), (13490, 21588), (14392, 20235), (14649, 19880), (14910, 19532), (15420, 18886), (15960, 18247), (16188, 17990)]