20152505

素因数分解:

$5^1\times {\mathrm{79}}^1\times {\mathrm{163}}^1\times {\mathrm{313}}^1$

素因数の和:560

約数の個数: 16

約数和(自身を含む): 24718080

約数和(自身を除く): 4565575

約数列:

[1, 5, 79, 163, 313, 395, 815, 1565, 12877, 24727, 51019, 64385, 123635, 255095, 4030501, 20152505]

約数ペア:

[(1, 20152505), (5, 4030501), (79, 255095), (163, 123635), (313, 64385), (395, 51019), (815, 24727), (1565, 12877)]