20539535840

素因数分解:

$2^5\times 5^1\times {\mathrm{128372099}}^1$

素因数の和:128372114

約数の個数: 24

約数和(自身を含む): 48524653800

約数和(自身を除く): 27985117960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 128372099, 256744198, 513488396, 641860495, 1026976792, 1283720990, 2053953584, 2567441980, 4107907168, 5134883960, 10269767920, 20539535840]

約数ペア:

[(1, 20539535840), (2, 10269767920), (4, 5134883960), (5, 4107907168), (8, 2567441980), (10, 2053953584), (16, 1283720990), (20, 1026976792), (32, 641860495), (40, 513488396), (80, 256744198), (160, 128372099)]