68639920

素因数分解:

$2^4\times 5^1\times {\mathrm{577}}^1\times {\mathrm{1487}}^1$

素因数の和:2077

約数の個数: 40

約数和(自身を含む): 159971904

約数和(自身を除く): 91331984

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 577, 1154, 1487, 2308, 2885, 2974, 4616, 5770, 5948, 7435, 9232, 11540, 11896, 14870, 23080, 23792, 29740, 46160, 59480, 118960, 857999, 1715998, 3431996, 4289995, 6863992, 8579990, 13727984, 17159980, 34319960, 68639920]

約数ペア:

[(1, 68639920), (2, 34319960), (4, 17159980), (5, 13727984), (8, 8579990), (10, 6863992), (16, 4289995), (20, 3431996), (40, 1715998), (80, 857999), (577, 118960), (1154, 59480), (1487, 46160), (2308, 29740), (2885, 23792), (2974, 23080), (4616, 14870), (5770, 11896), (5948, 11540), (7435, 9232)]