20766320

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{8951}}^1$

素因数の和:8993

約数の個数: 40

約数和(自身を含む): 49952160

約数和(自身を除く): 29185840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 40, 58, 80, 116, 145, 232, 290, 464, 580, 1160, 2320, 8951, 17902, 35804, 44755, 71608, 89510, 143216, 179020, 259579, 358040, 519158, 716080, 1038316, 1297895, 2076632, 2595790, 4153264, 5191580, 10383160, 20766320]

約数ペア:

[(1, 20766320), (2, 10383160), (4, 5191580), (5, 4153264), (8, 2595790), (10, 2076632), (16, 1297895), (20, 1038316), (29, 716080), (40, 519158), (58, 358040), (80, 259579), (116, 179020), (145, 143216), (232, 89510), (290, 71608), (464, 44755), (580, 35804), (1160, 17902), (2320, 8951)]