1689640

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{797}}^1$

素因数の和:861

約数の個数: 32

約数和(自身を含む): 3878280

約数和(自身を除く): 2188640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 212, 265, 424, 530, 797, 1060, 1594, 2120, 3188, 3985, 6376, 7970, 15940, 31880, 42241, 84482, 168964, 211205, 337928, 422410, 844820, 1689640]

約数ペア:

[(1, 1689640), (2, 844820), (4, 422410), (5, 337928), (8, 211205), (10, 168964), (20, 84482), (40, 42241), (53, 31880), (106, 15940), (212, 7970), (265, 6376), (424, 3985), (530, 3188), (797, 2120), (1060, 1594)]