20256985168

素因数分解:

$2^4\times 7^1\times {\mathrm{389}}^1\times {\mathrm{464951}}^1$

素因数の和:465355

約数の個数: 40

約数和(自身を含む): 44970157440

約数和(自身を除く): 24713172272

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 389, 778, 1556, 2723, 3112, 5446, 6224, 10892, 21784, 43568, 464951, 929902, 1859804, 3254657, 3719608, 6509314, 7439216, 13018628, 26037256, 52074512, 180865939, 361731878, 723463756, 1266061573, 1446927512, 2532123146, 2893855024, 5064246292, 10128492584, 20256985168]

約数ペア:

[(1, 20256985168), (2, 10128492584), (4, 5064246292), (7, 2893855024), (8, 2532123146), (14, 1446927512), (16, 1266061573), (28, 723463756), (56, 361731878), (112, 180865939), (389, 52074512), (778, 26037256), (1556, 13018628), (2723, 7439216), (3112, 6509314), (5446, 3719608), (6224, 3254657), (10892, 1859804), (21784, 929902), (43568, 464951)]