20590928

素因数分解:

$2^4\times {\mathrm{29}}^1\times {\mathrm{199}}^1\times {\mathrm{223}}^1$

素因数の和:459

約数の個数: 40

約数和(自身を含む): 41664000

約数和(自身を除く): 21073072

約数列:

[1, 2, 4, 8, 16, 29, 58, 116, 199, 223, 232, 398, 446, 464, 796, 892, 1592, 1784, 3184, 3568, 5771, 6467, 11542, 12934, 23084, 25868, 44377, 46168, 51736, 88754, 92336, 103472, 177508, 355016, 710032, 1286933, 2573866, 5147732, 10295464, 20590928]

約数ペア:

[(1, 20590928), (2, 10295464), (4, 5147732), (8, 2573866), (16, 1286933), (29, 710032), (58, 355016), (116, 177508), (199, 103472), (223, 92336), (232, 88754), (398, 51736), (446, 46168), (464, 44377), (796, 25868), (892, 23084), (1592, 12934), (1784, 11542), (3184, 6467), (3568, 5771)]