67720880

素因数分解:

$2^4\times 5^1\times {\mathrm{401}}^1\times {\mathrm{2111}}^1$

素因数の和:2525

約数の個数: 40

約数和(自身を含む): 157918464

約数和(自身を除く): 90197584

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 401, 802, 1604, 2005, 2111, 3208, 4010, 4222, 6416, 8020, 8444, 10555, 16040, 16888, 21110, 32080, 33776, 42220, 84440, 168880, 846511, 1693022, 3386044, 4232555, 6772088, 8465110, 13544176, 16930220, 33860440, 67720880]

約数ペア:

[(1, 67720880), (2, 33860440), (4, 16930220), (5, 13544176), (8, 8465110), (10, 6772088), (16, 4232555), (20, 3386044), (40, 1693022), (80, 846511), (401, 168880), (802, 84440), (1604, 42220), (2005, 33776), (2111, 32080), (3208, 21110), (4010, 16888), (4222, 16040), (6416, 10555), (8020, 8444)]