1408965680

素因数分解:

$2^4\times 5^1\times {\mathrm{881}}^1\times {\mathrm{19991}}^1$

素因数の和:20885

約数の個数: 40

約数和(自身を含む): 3279727584

約数和(自身を除く): 1870761904

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 881, 1762, 3524, 4405, 7048, 8810, 14096, 17620, 19991, 35240, 39982, 70480, 79964, 99955, 159928, 199910, 319856, 399820, 799640, 1599280, 17612071, 35224142, 70448284, 88060355, 140896568, 176120710, 281793136, 352241420, 704482840, 1408965680]

約数ペア:

[(1, 1408965680), (2, 704482840), (4, 352241420), (5, 281793136), (8, 176120710), (10, 140896568), (16, 88060355), (20, 70448284), (40, 35224142), (80, 17612071), (881, 1599280), (1762, 799640), (3524, 399820), (4405, 319856), (7048, 199910), (8810, 159928), (14096, 99955), (17620, 79964), (19991, 70480), (35240, 39982)]