28805140

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1$

素因数の和:79

約数の個数: 192

約数和(自身を含む): 84672000

約数和(自身を除く): 55866860

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, 221, 238, 245, 247, 260, 266, 323, 340, 343, 364, 380, 442, 455, 476, 490, 494, 532, 595, 637, 646, 665, 686, 833, 884, 910, 931, 980, 988, 1105, 1190, 1235, 1274, 1292, 1330, 1372, 1547, 1615, 1666, 1715, 1729, 1820, 1862, 2210, 2261, 2380, 2470, 2548, 2660, 3094, 3185, 3230, 3332, 3430, 3458, 3724, 4165, 4199, 4420, 4459, 4522, 4655, 4940, 5831, 6188, 6370, 6460, 6517, 6860, 6916, 7735, 8330, 8398, 8645, 8918, 9044, 9310, 10829, 11305, 11662, 12103, 12740, 13034, 15470, 15827, 16660, 16796, 17290, 17836, 18620, 20995, 21658, 22295, 22610, 23324, 24206, 26068, 29155, 29393, 30940, 31654, 32585, 34580, 41990, 43316, 44590, 45220, 48412, 54145, 58310, 58786, 60515, 63308, 65170, 75803, 79135, 83980, 84721, 89180, 108290, 110789, 116620, 117572, 121030, 130340, 146965, 151606, 158270, 169442, 205751, 216580, 221578, 242060, 293930, 303212, 316540, 338884, 379015, 411502, 423605, 443156, 553945, 587860, 758030, 823004, 847210, 1028755, 1107890, 1440257, 1516060, 1694420, 2057510, 2215780, 2880514, 4115020, 5761028, 7201285, 14402570, 28805140]

約数ペア:

[(1, 28805140), (2, 14402570), (4, 7201285), (5, 5761028), (7, 4115020), (10, 2880514), (13, 2215780), (14, 2057510), (17, 1694420), (19, 1516060), (20, 1440257), (26, 1107890), (28, 1028755), (34, 847210), (35, 823004), (38, 758030), (49, 587860), (52, 553945), (65, 443156), (68, 423605), (70, 411502), (76, 379015), (85, 338884), (91, 316540), (95, 303212), (98, 293930), (119, 242060), (130, 221578), (133, 216580), (140, 205751), (170, 169442), (182, 158270), (190, 151606), (196, 146965), (221, 130340), (238, 121030), (245, 117572), (247, 116620), (260, 110789), (266, 108290), (323, 89180), (340, 84721), (343, 83980), (364, 79135), (380, 75803), (442, 65170), (455, 63308), (476, 60515), (490, 58786), (494, 58310), (532, 54145), (595, 48412), (637, 45220), (646, 44590), (665, 43316), (686, 41990), (833, 34580), (884, 32585), (910, 31654), (931, 30940), (980, 29393), (988, 29155), (1105, 26068), (1190, 24206), (1235, 23324), (1274, 22610), (1292, 22295), (1330, 21658), (1372, 20995), (1547, 18620), (1615, 17836), (1666, 17290), (1715, 16796), (1729, 16660), (1820, 15827), (1862, 15470), (2210, 13034), (2261, 12740), (2380, 12103), (2470, 11662), (2548, 11305), (2660, 10829), (3094, 9310), (3185, 9044), (3230, 8918), (3332, 8645), (3430, 8398), (3458, 8330), (3724, 7735), (4165, 6916), (4199, 6860), (4420, 6517), (4459, 6460), (4522, 6370), (4655, 6188), (4940, 5831)]