201680725

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{281}}^1\times {\mathrm{1511}}^1$

素因数の和:1821

約数の個数: 24

約数和(自身を含む): 264358080

約数和(自身を除く): 62677355

約数列:

[1, 5, 19, 25, 95, 281, 475, 1405, 1511, 5339, 7025, 7555, 26695, 28709, 37775, 133475, 143545, 424591, 717725, 2122955, 8067229, 10614775, 40336145, 201680725]

約数ペア:

[(1, 201680725), (5, 40336145), (19, 10614775), (25, 8067229), (95, 2122955), (281, 717725), (475, 424591), (1405, 143545), (1511, 133475), (5339, 37775), (7025, 28709), (7555, 26695)]