68660440

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{139}}^1\times {\mathrm{233}}^1$

素因数の和:436

約数の個数: 64

約数和(自身を含む): 159213600

約数和(自身を除く): 90553160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 139, 212, 233, 265, 278, 424, 466, 530, 556, 695, 932, 1060, 1112, 1165, 1390, 1864, 2120, 2330, 2780, 4660, 5560, 7367, 9320, 12349, 14734, 24698, 29468, 32387, 36835, 49396, 58936, 61745, 64774, 73670, 98792, 123490, 129548, 147340, 161935, 246980, 259096, 294680, 323870, 493960, 647740, 1295480, 1716511, 3433022, 6866044, 8582555, 13732088, 17165110, 34330220, 68660440]

約数ペア:

[(1, 68660440), (2, 34330220), (4, 17165110), (5, 13732088), (8, 8582555), (10, 6866044), (20, 3433022), (40, 1716511), (53, 1295480), (106, 647740), (139, 493960), (212, 323870), (233, 294680), (265, 259096), (278, 246980), (424, 161935), (466, 147340), (530, 129548), (556, 123490), (695, 98792), (932, 73670), (1060, 64774), (1112, 61745), (1165, 58936), (1390, 49396), (1864, 36835), (2120, 32387), (2330, 29468), (2780, 24698), (4660, 14734), (5560, 12349), (7367, 9320)]