20329360

素因数分解:

$2^4\times 5^1\times {\mathrm{163}}^1\times {\mathrm{1559}}^1$

素因数の和:1735

約数の個数: 40

約数和(自身を含む): 47586240

約数和(自身を除く): 27256880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 163, 326, 652, 815, 1304, 1559, 1630, 2608, 3118, 3260, 6236, 6520, 7795, 12472, 13040, 15590, 24944, 31180, 62360, 124720, 254117, 508234, 1016468, 1270585, 2032936, 2541170, 4065872, 5082340, 10164680, 20329360]

約数ペア:

[(1, 20329360), (2, 10164680), (4, 5082340), (5, 4065872), (8, 2541170), (10, 2032936), (16, 1270585), (20, 1016468), (40, 508234), (80, 254117), (163, 124720), (326, 62360), (652, 31180), (815, 24944), (1304, 15590), (1559, 13040), (1630, 12472), (2608, 7795), (3118, 6520), (3260, 6236)]