2021521780

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{3260519}}^1$

素因数の和:3260559

約数の個数: 24

約数和(自身を含む): 4382138880

約数和(自身を除く): 2360617100

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 3260519, 6521038, 13042076, 16302595, 32605190, 65210380, 101076089, 202152178, 404304356, 505380445, 1010760890, 2021521780]

約数ペア:

[(1, 2021521780), (2, 1010760890), (4, 505380445), (5, 404304356), (10, 202152178), (20, 101076089), (31, 65210380), (62, 32605190), (124, 16302595), (155, 13042076), (310, 6521038), (620, 3260519)]