20571550

素因数分解:

$2^1\times 5^2\times {\mathrm{83}}^1\times {\mathrm{4957}}^1$

素因数の和:5052

約数の個数: 24

約数和(自身を含む): 38731896

約数和(自身を除く): 18160346

約数列:

[1, 2, 5, 10, 25, 50, 83, 166, 415, 830, 2075, 4150, 4957, 9914, 24785, 49570, 123925, 247850, 411431, 822862, 2057155, 4114310, 10285775, 20571550]

約数ペア:

[(1, 20571550), (2, 10285775), (5, 4114310), (10, 2057155), (25, 822862), (50, 411431), (83, 247850), (166, 123925), (415, 49570), (830, 24785), (2075, 9914), (4150, 4957)]