128232640

素因数分解:

$2^6\times 5^1\times {\mathrm{67}}^1\times {\mathrm{5981}}^1$

素因数の和:6065

約数の個数: 56

約数和(自身を含む): 309963312

約数和(自身を除く): 181730672

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 67, 80, 134, 160, 268, 320, 335, 536, 670, 1072, 1340, 2144, 2680, 4288, 5360, 5981, 10720, 11962, 21440, 23924, 29905, 47848, 59810, 95696, 119620, 191392, 239240, 382784, 400727, 478480, 801454, 956960, 1602908, 1913920, 2003635, 3205816, 4007270, 6411632, 8014540, 12823264, 16029080, 25646528, 32058160, 64116320, 128232640]

約数ペア:

[(1, 128232640), (2, 64116320), (4, 32058160), (5, 25646528), (8, 16029080), (10, 12823264), (16, 8014540), (20, 6411632), (32, 4007270), (40, 3205816), (64, 2003635), (67, 1913920), (80, 1602908), (134, 956960), (160, 801454), (268, 478480), (320, 400727), (335, 382784), (536, 239240), (670, 191392), (1072, 119620), (1340, 95696), (2144, 59810), (2680, 47848), (4288, 29905), (5360, 23924), (5981, 21440), (10720, 11962)]