20300540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{78079}}^1$

素因数の和:78101

約数の個数: 24

約数和(自身を含む): 45911040

約数和(自身を除く): 25610500

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 78079, 156158, 312316, 390395, 780790, 1015027, 1561580, 2030054, 4060108, 5075135, 10150270, 20300540]

約数ペア:

[(1, 20300540), (2, 10150270), (4, 5075135), (5, 4060108), (10, 2030054), (13, 1561580), (20, 1015027), (26, 780790), (52, 390395), (65, 312316), (130, 156158), (260, 78079)]