156338380

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{199}}^1\times {\mathrm{3571}}^1$

素因数の和:3790

約数の個数: 48

約数和(自身を含む): 360057600

約数和(自身を除く): 203719220

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 199, 220, 398, 796, 995, 1990, 2189, 3571, 3980, 4378, 7142, 8756, 10945, 14284, 17855, 21890, 35710, 39281, 43780, 71420, 78562, 157124, 196405, 392810, 710629, 785620, 1421258, 2842516, 3553145, 7106290, 7816919, 14212580, 15633838, 31267676, 39084595, 78169190, 156338380]

約数ペア:

[(1, 156338380), (2, 78169190), (4, 39084595), (5, 31267676), (10, 15633838), (11, 14212580), (20, 7816919), (22, 7106290), (44, 3553145), (55, 2842516), (110, 1421258), (199, 785620), (220, 710629), (398, 392810), (796, 196405), (995, 157124), (1990, 78562), (2189, 71420), (3571, 43780), (3980, 39281), (4378, 35710), (7142, 21890), (8756, 17855), (10945, 14284)]