68990913

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1$

素因数の和:199

約数の個数: 64

約数和(自身を含む): 115084800

約数和(自身を除く): 46093887

約数列:

[1, 3, 9, 17, 27, 29, 51, 71, 73, 87, 153, 213, 219, 261, 459, 493, 639, 657, 783, 1207, 1241, 1479, 1917, 1971, 2059, 2117, 3621, 3723, 4437, 5183, 6177, 6351, 10863, 11169, 13311, 15549, 18531, 19053, 32589, 33507, 35003, 35989, 46647, 55593, 57159, 88111, 105009, 107967, 139941, 150307, 264333, 315027, 323901, 450921, 792999, 945081, 971703, 1352763, 2378997, 2555219, 4058289, 7665657, 22996971, 68990913]

約数ペア:

[(1, 68990913), (3, 22996971), (9, 7665657), (17, 4058289), (27, 2555219), (29, 2378997), (51, 1352763), (71, 971703), (73, 945081), (87, 792999), (153, 450921), (213, 323901), (219, 315027), (261, 264333), (459, 150307), (493, 139941), (639, 107967), (657, 105009), (783, 88111), (1207, 57159), (1241, 55593), (1479, 46647), (1917, 35989), (1971, 35003), (2059, 33507), (2117, 32589), (3621, 19053), (3723, 18531), (4437, 15549), (5183, 13311), (6177, 11169), (6351, 10863)]