63970100

素因数分解:

$2^2\times 5^2\times {\mathrm{639701}}^1$

素因数の和:639715

約数の個数: 18

約数和(自身を含む): 138815334

約数和(自身を除く): 74845234

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 639701, 1279402, 2558804, 3198505, 6397010, 12794020, 15992525, 31985050, 63970100]

約数ペア:

[(1, 63970100), (2, 31985050), (4, 15992525), (5, 12794020), (10, 6397010), (20, 3198505), (25, 2558804), (50, 1279402), (100, 639701)]