29971640

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{8419}}^1$

素因数の和:8519

約数の個数: 32

約数和(自身を含む): 68202000

約数和(自身を除く): 38230360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 356, 445, 712, 890, 1780, 3560, 8419, 16838, 33676, 42095, 67352, 84190, 168380, 336760, 749291, 1498582, 2997164, 3746455, 5994328, 7492910, 14985820, 29971640]

約数ペア:

[(1, 29971640), (2, 14985820), (4, 7492910), (5, 5994328), (8, 3746455), (10, 2997164), (20, 1498582), (40, 749291), (89, 336760), (178, 168380), (356, 84190), (445, 67352), (712, 42095), (890, 33676), (1780, 16838), (3560, 8419)]