1287658730

素因数分解:

$2^1\times 5^1\times {\mathrm{113}}^1\times {\mathrm{1139521}}^1$

素因数の和:1139641

約数の個数: 16

約数和(自身を含む): 2338299144

約数和(自身を除く): 1050640414

約数列:

[1, 2, 5, 10, 113, 226, 565, 1130, 1139521, 2279042, 5697605, 11395210, 128765873, 257531746, 643829365, 1287658730]

約数ペア:

[(1, 1287658730), (2, 643829365), (5, 257531746), (10, 128765873), (113, 11395210), (226, 5697605), (565, 2279042), (1130, 1139521)]