2478280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{167}}^1$

素因数の和:238

約数の個数: 64

約数和(自身を含む): 6531840

約数和(自身を除く): 4053560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 53, 56, 70, 106, 140, 167, 212, 265, 280, 334, 371, 424, 530, 668, 742, 835, 1060, 1169, 1336, 1484, 1670, 1855, 2120, 2338, 2968, 3340, 3710, 4676, 5845, 6680, 7420, 8851, 9352, 11690, 14840, 17702, 23380, 35404, 44255, 46760, 61957, 70808, 88510, 123914, 177020, 247828, 309785, 354040, 495656, 619570, 1239140, 2478280]

約数ペア:

[(1, 2478280), (2, 1239140), (4, 619570), (5, 495656), (7, 354040), (8, 309785), (10, 247828), (14, 177020), (20, 123914), (28, 88510), (35, 70808), (40, 61957), (53, 46760), (56, 44255), (70, 35404), (106, 23380), (140, 17702), (167, 14840), (212, 11690), (265, 9352), (280, 8851), (334, 7420), (371, 6680), (424, 5845), (530, 4676), (668, 3710), (742, 3340), (835, 2968), (1060, 2338), (1169, 2120), (1336, 1855), (1484, 1670)]