212855560

素因数分解:

$2^3\times 5^1\times {\mathrm{5321389}}^1$

素因数の和:5321400

約数の個数: 16

約数和(自身を含む): 478925100

約数和(自身を除く): 266069540

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 5321389, 10642778, 21285556, 26606945, 42571112, 53213890, 106427780, 212855560]

約数ペア:

[(1, 212855560), (2, 106427780), (4, 53213890), (5, 42571112), (8, 26606945), (10, 21285556), (20, 10642778), (40, 5321389)]