80618440

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{499}}^1\times {\mathrm{577}}^1$

素因数の和:1094

約数の個数: 64

約数和(自身を含む): 208080000

約数和(自身を除く): 127461560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 499, 577, 998, 1154, 1996, 2308, 2495, 2885, 3493, 3992, 4039, 4616, 4990, 5770, 6986, 8078, 9980, 11540, 13972, 16156, 17465, 19960, 20195, 23080, 27944, 32312, 34930, 40390, 69860, 80780, 139720, 161560, 287923, 575846, 1151692, 1439615, 2015461, 2303384, 2879230, 4030922, 5758460, 8061844, 10077305, 11516920, 16123688, 20154610, 40309220, 80618440]

約数ペア:

[(1, 80618440), (2, 40309220), (4, 20154610), (5, 16123688), (7, 11516920), (8, 10077305), (10, 8061844), (14, 5758460), (20, 4030922), (28, 2879230), (35, 2303384), (40, 2015461), (56, 1439615), (70, 1151692), (140, 575846), (280, 287923), (499, 161560), (577, 139720), (998, 80780), (1154, 69860), (1996, 40390), (2308, 34930), (2495, 32312), (2885, 27944), (3493, 23080), (3992, 20195), (4039, 19960), (4616, 17465), (4990, 16156), (5770, 13972), (6986, 11540), (8078, 9980)]