257434340

素因数分解:

$2^2\times 5^1\times {\mathrm{113}}^1\times {\mathrm{113909}}^1$

素因数の和:114031

約数の個数: 24

約数和(自身を含む): 545401080

約数和(自身を除く): 287966740

約数列:

[1, 2, 4, 5, 10, 20, 113, 226, 452, 565, 1130, 2260, 113909, 227818, 455636, 569545, 1139090, 2278180, 12871717, 25743434, 51486868, 64358585, 128717170, 257434340]

約数ペア:

[(1, 257434340), (2, 128717170), (4, 64358585), (5, 51486868), (10, 25743434), (20, 12871717), (113, 2278180), (226, 1139090), (452, 569545), (565, 455636), (1130, 227818), (2260, 113909)]