257945210

素因数分解:

$2^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{422861}}^1$

素因数の和:422929

約数の個数: 16

約数和(自身を含む): 471913992

約数和(自身を除く): 213968782

約数列:

[1, 2, 5, 10, 61, 122, 305, 610, 422861, 845722, 2114305, 4228610, 25794521, 51589042, 128972605, 257945210]

約数ペア:

[(1, 257945210), (2, 128972605), (5, 51589042), (10, 25794521), (61, 4228610), (122, 2114305), (305, 845722), (610, 422861)]