203969825

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{149}}^1\times {\mathrm{3221}}^1$

素因数の和:3397

約数の個数: 24

約数和(自身を含む): 269681400

約数和(自身を除く): 65711575

約数列:

[1, 5, 17, 25, 85, 149, 425, 745, 2533, 3221, 3725, 12665, 16105, 54757, 63325, 80525, 273785, 479929, 1368925, 2399645, 8158793, 11998225, 40793965, 203969825]

約数ペア:

[(1, 203969825), (5, 40793965), (17, 11998225), (25, 8158793), (85, 2399645), (149, 1368925), (425, 479929), (745, 273785), (2533, 80525), (3221, 63325), (3725, 54757), (12665, 16105)]