642150725

素因数分解:

$5^2\times {\mathrm{37}}^1\times {\mathrm{163}}^1\times {\mathrm{4259}}^1$

素因数の和:4469

約数の個数: 24

約数和(自身を含む): 822997920

約数和(自身を除く): 180847195

約数列:

[1, 5, 25, 37, 163, 185, 815, 925, 4075, 4259, 6031, 21295, 30155, 106475, 150775, 157583, 694217, 787915, 3471085, 3939575, 17355425, 25686029, 128430145, 642150725]

約数ペア:

[(1, 642150725), (5, 128430145), (25, 25686029), (37, 17355425), (163, 3939575), (185, 3471085), (815, 787915), (925, 694217), (4075, 157583), (4259, 150775), (6031, 106475), (21295, 30155)]