81642730

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{628021}}^1$

素因数の和:628041

約数の個数: 16

約数和(自身を含む): 158261544

約数和(自身を除く): 76618814

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 628021, 1256042, 3140105, 6280210, 8164273, 16328546, 40821365, 81642730]

約数ペア:

[(1, 81642730), (2, 40821365), (5, 16328546), (10, 8164273), (13, 6280210), (26, 3140105), (65, 1256042), (130, 628021)]