20147660

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{77491}}^1$

素因数の和:77513

約数の個数: 24

約数和(自身を含む): 45565296

約数和(自身を除く): 25417636

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 77491, 154982, 309964, 387455, 774910, 1007383, 1549820, 2014766, 4029532, 5036915, 10073830, 20147660]

約数ペア:

[(1, 20147660), (2, 10073830), (4, 5036915), (5, 4029532), (10, 2014766), (13, 1549820), (20, 1007383), (26, 774910), (52, 387455), (65, 309964), (130, 154982), (260, 77491)]