164708840

素因数分解:

$2^3\times 5^1\times {\mathrm{127}}^1\times {\mathrm{32423}}^1$

素因数の和:32561

約数の個数: 32

約数和(自身を含む): 373524480

約数和(自身を除く): 208815640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 127, 254, 508, 635, 1016, 1270, 2540, 5080, 32423, 64846, 129692, 162115, 259384, 324230, 648460, 1296920, 4117721, 8235442, 16470884, 20588605, 32941768, 41177210, 82354420, 164708840]

約数ペア:

[(1, 164708840), (2, 82354420), (4, 41177210), (5, 32941768), (8, 20588605), (10, 16470884), (20, 8235442), (40, 4117721), (127, 1296920), (254, 648460), (508, 324230), (635, 259384), (1016, 162115), (1270, 129692), (2540, 64846), (5080, 32423)]