20431312

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{4003}}^1$

素因数の和:4051

約数の個数: 40

約数和(自身を含む): 44684640

約数和(自身を除く): 24253328

約数列:

[1, 2, 4, 8, 11, 16, 22, 29, 44, 58, 88, 116, 176, 232, 319, 464, 638, 1276, 2552, 4003, 5104, 8006, 16012, 32024, 44033, 64048, 88066, 116087, 176132, 232174, 352264, 464348, 704528, 928696, 1276957, 1857392, 2553914, 5107828, 10215656, 20431312]

約数ペア:

[(1, 20431312), (2, 10215656), (4, 5107828), (8, 2553914), (11, 1857392), (16, 1276957), (22, 928696), (29, 704528), (44, 464348), (58, 352264), (88, 232174), (116, 176132), (176, 116087), (232, 88066), (319, 64048), (464, 44033), (638, 32024), (1276, 16012), (2552, 8006), (4003, 5104)]