128785125

素因数分解:

$3^1\times 5^3\times 7^1\times {\mathrm{71}}^1\times {\mathrm{691}}^1$

素因数の和:787

約数の個数: 64

約数和(自身を含む): 248721408

約数和(自身を除く): 119936283

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 71, 75, 105, 125, 175, 213, 355, 375, 497, 525, 691, 875, 1065, 1491, 1775, 2073, 2485, 2625, 3455, 4837, 5325, 7455, 8875, 10365, 12425, 14511, 17275, 24185, 26625, 37275, 49061, 51825, 62125, 72555, 86375, 120925, 147183, 186375, 245305, 259125, 343427, 362775, 604625, 735915, 1030281, 1226525, 1717135, 1813875, 3679575, 5151405, 6132625, 8585675, 18397875, 25757025, 42928375, 128785125]

約数ペア:

[(1, 128785125), (3, 42928375), (5, 25757025), (7, 18397875), (15, 8585675), (21, 6132625), (25, 5151405), (35, 3679575), (71, 1813875), (75, 1717135), (105, 1226525), (125, 1030281), (175, 735915), (213, 604625), (355, 362775), (375, 343427), (497, 259125), (525, 245305), (691, 186375), (875, 147183), (1065, 120925), (1491, 86375), (1775, 72555), (2073, 62125), (2485, 51825), (2625, 49061), (3455, 37275), (4837, 26625), (5325, 24185), (7455, 17275), (8875, 14511), (10365, 12425)]