20888200

素因数分解:

$2^3\times 5^2\times {\mathrm{71}}^1\times {\mathrm{1471}}^1$

素因数の和:1558

約数の個数: 48

約数和(自身を含む): 49282560

約数和(自身を除く): 28394360

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 71, 100, 142, 200, 284, 355, 568, 710, 1420, 1471, 1775, 2840, 2942, 3550, 5884, 7100, 7355, 11768, 14200, 14710, 29420, 36775, 58840, 73550, 104441, 147100, 208882, 294200, 417764, 522205, 835528, 1044410, 2088820, 2611025, 4177640, 5222050, 10444100, 20888200]

約数ペア:

[(1, 20888200), (2, 10444100), (4, 5222050), (5, 4177640), (8, 2611025), (10, 2088820), (20, 1044410), (25, 835528), (40, 522205), (50, 417764), (71, 294200), (100, 208882), (142, 147100), (200, 104441), (284, 73550), (355, 58840), (568, 36775), (710, 29420), (1420, 14710), (1471, 14200), (1775, 11768), (2840, 7355), (2942, 7100), (3550, 5884)]