28215700

素因数分解:

$2^2\times 5^2\times {\mathrm{282157}}^1$

素因数の和:282171

約数の個数: 18

約数和(自身を含む): 61228286

約数和(自身を除く): 33012586

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 282157, 564314, 1128628, 1410785, 2821570, 5643140, 7053925, 14107850, 28215700]

約数ペア:

[(1, 28215700), (2, 14107850), (4, 7053925), (5, 5643140), (10, 2821570), (20, 1410785), (25, 1128628), (50, 564314), (100, 282157)]