203812720

素因数分解:

$2^4\times 5^1\times {\mathrm{2547659}}^1$

素因数の和:2547672

約数の個数: 20

約数和(自身を含む): 473864760

約数和(自身を除く): 270052040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2547659, 5095318, 10190636, 12738295, 20381272, 25476590, 40762544, 50953180, 101906360, 203812720]

約数ペア:

[(1, 203812720), (2, 101906360), (4, 50953180), (5, 40762544), (8, 25476590), (10, 20381272), (16, 12738295), (20, 10190636), (40, 5095318), (80, 2547659)]