1640422480

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{28051}}^1$

素因数の和:28124

約数の個数: 80

約数和(自身を含む): 4132396224

約数和(自身を除く): 2491973744

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 43, 68, 80, 85, 86, 136, 170, 172, 215, 272, 340, 344, 430, 680, 688, 731, 860, 1360, 1462, 1720, 2924, 3440, 3655, 5848, 7310, 11696, 14620, 28051, 29240, 56102, 58480, 112204, 140255, 224408, 280510, 448816, 476867, 561020, 953734, 1122040, 1206193, 1907468, 2244080, 2384335, 2412386, 3814936, 4768670, 4824772, 6030965, 7629872, 9537340, 9649544, 12061930, 19074680, 19299088, 20505281, 24123860, 38149360, 41010562, 48247720, 82021124, 96495440, 102526405, 164042248, 205052810, 328084496, 410105620, 820211240, 1640422480]

約数ペア:

[(1, 1640422480), (2, 820211240), (4, 410105620), (5, 328084496), (8, 205052810), (10, 164042248), (16, 102526405), (17, 96495440), (20, 82021124), (34, 48247720), (40, 41010562), (43, 38149360), (68, 24123860), (80, 20505281), (85, 19299088), (86, 19074680), (136, 12061930), (170, 9649544), (172, 9537340), (215, 7629872), (272, 6030965), (340, 4824772), (344, 4768670), (430, 3814936), (680, 2412386), (688, 2384335), (731, 2244080), (860, 1907468), (1360, 1206193), (1462, 1122040), (1720, 953734), (2924, 561020), (3440, 476867), (3655, 448816), (5848, 280510), (7310, 224408), (11696, 140255), (14620, 112204), (28051, 58480), (29240, 56102)]