28168450

素因数分解:

$2^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{149}}^1\times {\mathrm{199}}^1$

素因数の和:379

約数の個数: 48

約数和(自身を含む): 55800000

約数和(自身を除く): 27631550

約数列:

[1, 2, 5, 10, 19, 25, 38, 50, 95, 149, 190, 199, 298, 398, 475, 745, 950, 995, 1490, 1990, 2831, 3725, 3781, 4975, 5662, 7450, 7562, 9950, 14155, 18905, 28310, 29651, 37810, 59302, 70775, 94525, 141550, 148255, 189050, 296510, 563369, 741275, 1126738, 1482550, 2816845, 5633690, 14084225, 28168450]

約数ペア:

[(1, 28168450), (2, 14084225), (5, 5633690), (10, 2816845), (19, 1482550), (25, 1126738), (38, 741275), (50, 563369), (95, 296510), (149, 189050), (190, 148255), (199, 141550), (298, 94525), (398, 70775), (475, 59302), (745, 37810), (950, 29651), (995, 28310), (1490, 18905), (1990, 14155), (2831, 9950), (3725, 7562), (3781, 7450), (4975, 5662)]