201777970

素因数分解:

$2^1\times 5^1\times {\mathrm{157}}^1\times {\mathrm{128521}}^1$

素因数の和:128685

約数の個数: 16

約数和(自身を含む): 365516568

約数和(自身を除く): 163738598

約数列:

[1, 2, 5, 10, 157, 314, 785, 1570, 128521, 257042, 642605, 1285210, 20177797, 40355594, 100888985, 201777970]

約数ペア:

[(1, 201777970), (2, 100888985), (5, 40355594), (10, 20177797), (157, 1285210), (314, 642605), (785, 257042), (1570, 128521)]