138967640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{496313}}^1$

素因数の和:496331

約数の個数: 32

約数和(自身を含む): 357346080

約数和(自身を除く): 218378440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 496313, 992626, 1985252, 2481565, 3474191, 3970504, 4963130, 6948382, 9926260, 13896764, 17370955, 19852520, 27793528, 34741910, 69483820, 138967640]

約数ペア:

[(1, 138967640), (2, 69483820), (4, 34741910), (5, 27793528), (7, 19852520), (8, 17370955), (10, 13896764), (14, 9926260), (20, 6948382), (28, 4963130), (35, 3970504), (40, 3474191), (56, 2481565), (70, 1985252), (140, 992626), (280, 496313)]