11281640

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{3169}}^1$

素因数の和:3269

約数の個数: 32

約数和(自身を含む): 25677000

約数和(自身を除く): 14395360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 356, 445, 712, 890, 1780, 3169, 3560, 6338, 12676, 15845, 25352, 31690, 63380, 126760, 282041, 564082, 1128164, 1410205, 2256328, 2820410, 5640820, 11281640]

約数ペア:

[(1, 11281640), (2, 5640820), (4, 2820410), (5, 2256328), (8, 1410205), (10, 1128164), (20, 564082), (40, 282041), (89, 126760), (178, 63380), (356, 31690), (445, 25352), (712, 15845), (890, 12676), (1780, 6338), (3169, 3560)]