66690880

素因数分解:

$2^6\times 5^1\times {\mathrm{208409}}^1$

素因数の和:208426

約数の個数: 28

約数和(自身を含む): 158808420

約数和(自身を除く): 92117540

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 208409, 416818, 833636, 1042045, 1667272, 2084090, 3334544, 4168180, 6669088, 8336360, 13338176, 16672720, 33345440, 66690880]

約数ペア:

[(1, 66690880), (2, 33345440), (4, 16672720), (5, 13338176), (8, 8336360), (10, 6669088), (16, 4168180), (20, 3334544), (32, 2084090), (40, 1667272), (64, 1042045), (80, 833636), (160, 416818), (320, 208409)]