259979968

素因数分解:

$2^6\times {\mathrm{137}}^1\times {\mathrm{149}}^1\times {\mathrm{199}}^1$

素因数の和:497

約数の個数: 56

約数和(自身を含む): 525780000

約数和(自身を除く): 265800032

約数列:

[1, 2, 4, 8, 16, 32, 64, 137, 149, 199, 274, 298, 398, 548, 596, 796, 1096, 1192, 1592, 2192, 2384, 3184, 4384, 4768, 6368, 8768, 9536, 12736, 20413, 27263, 29651, 40826, 54526, 59302, 81652, 109052, 118604, 163304, 218104, 237208, 326608, 436208, 474416, 653216, 872416, 948832, 1306432, 1744832, 1897664, 4062187, 8124374, 16248748, 32497496, 64994992, 129989984, 259979968]

約数ペア:

[(1, 259979968), (2, 129989984), (4, 64994992), (8, 32497496), (16, 16248748), (32, 8124374), (64, 4062187), (137, 1897664), (149, 1744832), (199, 1306432), (274, 948832), (298, 872416), (398, 653216), (548, 474416), (596, 436208), (796, 326608), (1096, 237208), (1192, 218104), (1592, 163304), (2192, 118604), (2384, 109052), (3184, 81652), (4384, 59302), (4768, 54526), (6368, 40826), (8768, 29651), (9536, 27263), (12736, 20413)]