81527360

素因数分解:

$2^6\times 5^1\times {\mathrm{254773}}^1$

素因数の和:254790

約数の個数: 28

約数和(自身を含む): 194137788

約数和(自身を除く): 112610428

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 254773, 509546, 1019092, 1273865, 2038184, 2547730, 4076368, 5095460, 8152736, 10190920, 16305472, 20381840, 40763680, 81527360]

約数ペア:

[(1, 81527360), (2, 40763680), (4, 20381840), (5, 16305472), (8, 10190920), (10, 8152736), (16, 5095460), (20, 4076368), (32, 2547730), (40, 2038184), (64, 1273865), (80, 1019092), (160, 509546), (320, 254773)]