128500640

素因数分解:

$2^5\times 5^1\times {\mathrm{67}}^1\times {\mathrm{11987}}^1$

素因数の和:12069

約数の個数: 48

約数和(自身を含む): 308139552

約数和(自身を除く): 179638912

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 67, 80, 134, 160, 268, 335, 536, 670, 1072, 1340, 2144, 2680, 5360, 10720, 11987, 23974, 47948, 59935, 95896, 119870, 191792, 239740, 383584, 479480, 803129, 958960, 1606258, 1917920, 3212516, 4015645, 6425032, 8031290, 12850064, 16062580, 25700128, 32125160, 64250320, 128500640]

約数ペア:

[(1, 128500640), (2, 64250320), (4, 32125160), (5, 25700128), (8, 16062580), (10, 12850064), (16, 8031290), (20, 6425032), (32, 4015645), (40, 3212516), (67, 1917920), (80, 1606258), (134, 958960), (160, 803129), (268, 479480), (335, 383584), (536, 239740), (670, 191792), (1072, 119870), (1340, 95896), (2144, 59935), (2680, 47948), (5360, 23974), (10720, 11987)]