326156920

素因数分解:

$2^3\times 5^1\times {\mathrm{557}}^1\times {\mathrm{14639}}^1$

素因数の和:15207

約数の個数: 32

約数和(自身を含む): 735220800

約数和(自身を除く): 409063880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 557, 1114, 2228, 2785, 4456, 5570, 11140, 14639, 22280, 29278, 58556, 73195, 117112, 146390, 292780, 585560, 8153923, 16307846, 32615692, 40769615, 65231384, 81539230, 163078460, 326156920]

約数ペア:

[(1, 326156920), (2, 163078460), (4, 81539230), (5, 65231384), (8, 40769615), (10, 32615692), (20, 16307846), (40, 8153923), (557, 585560), (1114, 292780), (2228, 146390), (2785, 117112), (4456, 73195), (5570, 58556), (11140, 29278), (14639, 22280)]