28754020

素因数分解:

$2^2\times 5^1\times {\mathrm{149}}^1\times {\mathrm{9649}}^1$

素因数の和:9807

約数の個数: 24

約数和(自身を含む): 60795000

約数和(自身を除く): 32040980

約数列:

[1, 2, 4, 5, 10, 20, 149, 298, 596, 745, 1490, 2980, 9649, 19298, 38596, 48245, 96490, 192980, 1437701, 2875402, 5750804, 7188505, 14377010, 28754020]

約数ペア:

[(1, 28754020), (2, 14377010), (4, 7188505), (5, 5750804), (10, 2875402), (20, 1437701), (149, 192980), (298, 96490), (596, 48245), (745, 38596), (1490, 19298), (2980, 9649)]