128237360

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{107}}^1\times {\mathrm{211}}^1$

素因数の和:402

約数の個数: 80

約数和(自身を含む): 306623232

約数和(自身を除く): 178385872

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 107, 142, 211, 214, 284, 355, 422, 428, 535, 568, 710, 844, 856, 1055, 1070, 1136, 1420, 1688, 1712, 2110, 2140, 2840, 3376, 4220, 4280, 5680, 7597, 8440, 8560, 14981, 15194, 16880, 22577, 29962, 30388, 37985, 45154, 59924, 60776, 74905, 75970, 90308, 112885, 119848, 121552, 149810, 151940, 180616, 225770, 239696, 299620, 303880, 361232, 451540, 599240, 607760, 903080, 1198480, 1602967, 1806160, 3205934, 6411868, 8014835, 12823736, 16029670, 25647472, 32059340, 64118680, 128237360]

約数ペア:

[(1, 128237360), (2, 64118680), (4, 32059340), (5, 25647472), (8, 16029670), (10, 12823736), (16, 8014835), (20, 6411868), (40, 3205934), (71, 1806160), (80, 1602967), (107, 1198480), (142, 903080), (211, 607760), (214, 599240), (284, 451540), (355, 361232), (422, 303880), (428, 299620), (535, 239696), (568, 225770), (710, 180616), (844, 151940), (856, 149810), (1055, 121552), (1070, 119848), (1136, 112885), (1420, 90308), (1688, 75970), (1712, 74905), (2110, 60776), (2140, 59924), (2840, 45154), (3376, 37985), (4220, 30388), (4280, 29962), (5680, 22577), (7597, 16880), (8440, 15194), (8560, 14981)]