20500090

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{1531}}^1$

素因数の和:1654

約数の個数: 32

約数和(自身を含む): 40150656

約数和(自身を除く): 19650566

約数列:

[1, 2, 5, 10, 13, 26, 65, 103, 130, 206, 515, 1030, 1339, 1531, 2678, 3062, 6695, 7655, 13390, 15310, 19903, 39806, 99515, 157693, 199030, 315386, 788465, 1576930, 2050009, 4100018, 10250045, 20500090]

約数ペア:

[(1, 20500090), (2, 10250045), (5, 4100018), (10, 2050009), (13, 1576930), (26, 788465), (65, 315386), (103, 199030), (130, 157693), (206, 99515), (515, 39806), (1030, 19903), (1339, 15310), (1531, 13390), (2678, 7655), (3062, 6695)]