890990799700

素因数分解:

$2^2\times 5^2\times {\mathrm{31}}^1\times {\mathrm{1117}}^1\times {\mathrm{257311}}^1$

素因数の和:258473

約数の個数: 72

約数和(自身を含む): 1997613922304

約数和(自身を除く): 1106623122604

約数列:

[1, 2, 4, 5, 10, 20, 25, 31, 50, 62, 100, 124, 155, 310, 620, 775, 1117, 1550, 2234, 3100, 4468, 5585, 11170, 22340, 27925, 34627, 55850, 69254, 111700, 138508, 173135, 257311, 346270, 514622, 692540, 865675, 1029244, 1286555, 1731350, 2573110, 3462700, 5146220, 6432775, 7976641, 12865550, 15953282, 25731100, 31906564, 39883205, 79766410, 159532820, 199416025, 287416387, 398832050, 574832774, 797664100, 1149665548, 1437081935, 2874163870, 5748327740, 7185409675, 8909907997, 14370819350, 17819815994, 28741638700, 35639631988, 44549539985, 89099079970, 178198159940, 222747699925, 445495399850, 890990799700]

約数ペア:

[(1, 890990799700), (2, 445495399850), (4, 222747699925), (5, 178198159940), (10, 89099079970), (20, 44549539985), (25, 35639631988), (31, 28741638700), (50, 17819815994), (62, 14370819350), (100, 8909907997), (124, 7185409675), (155, 5748327740), (310, 2874163870), (620, 1437081935), (775, 1149665548), (1117, 797664100), (1550, 574832774), (2234, 398832050), (3100, 287416387), (4468, 199416025), (5585, 159532820), (11170, 79766410), (22340, 39883205), (27925, 31906564), (34627, 25731100), (55850, 15953282), (69254, 12865550), (111700, 7976641), (138508, 6432775), (173135, 5146220), (257311, 3462700), (346270, 2573110), (514622, 1731350), (692540, 1286555), (865675, 1029244)]