259397788

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{51427}}^1$

素因数の和:51541

約数の個数: 24

約数和(自身を含む): 493914512

約数和(自身を除く): 234516724

約数列:

[1, 2, 4, 13, 26, 52, 97, 194, 388, 1261, 2522, 5044, 51427, 102854, 205708, 668551, 1337102, 2674204, 4988419, 9976838, 19953676, 64849447, 129698894, 259397788]

約数ペア:

[(1, 259397788), (2, 129698894), (4, 64849447), (13, 19953676), (26, 9976838), (52, 4988419), (97, 2674204), (194, 1337102), (388, 668551), (1261, 205708), (2522, 102854), (5044, 51427)]