281010261

素因数分解:

$3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{71}}^1\times {\mathrm{97}}^1$

素因数の和:274

約数の個数: 64

約数和(自身を含む): 460615680

約数和(自身を除く): 179605419

約数列:

[1, 3, 7, 21, 29, 67, 71, 87, 97, 201, 203, 213, 291, 469, 497, 609, 679, 1407, 1491, 1943, 2037, 2059, 2813, 4757, 5829, 6177, 6499, 6887, 8439, 13601, 14271, 14413, 19497, 19691, 20661, 33299, 40803, 43239, 45493, 48209, 59073, 99897, 136479, 137953, 144627, 188471, 199723, 413859, 461429, 565413, 599169, 965671, 1319297, 1384287, 1398061, 2897013, 3230003, 3957891, 4194183, 9690009, 13381441, 40144323, 93670087, 281010261]

約数ペア:

[(1, 281010261), (3, 93670087), (7, 40144323), (21, 13381441), (29, 9690009), (67, 4194183), (71, 3957891), (87, 3230003), (97, 2897013), (201, 1398061), (203, 1384287), (213, 1319297), (291, 965671), (469, 599169), (497, 565413), (609, 461429), (679, 413859), (1407, 199723), (1491, 188471), (1943, 144627), (2037, 137953), (2059, 136479), (2813, 99897), (4757, 59073), (5829, 48209), (6177, 45493), (6499, 43239), (6887, 40803), (8439, 33299), (13601, 20661), (14271, 19691), (14413, 19497)]