20159963650

素因数分解:

$2^1\times 5^2\times {\mathrm{71}}^1\times {\mathrm{199}}^1\times {\mathrm{28537}}^1$

素因数の和:28819

約数の個数: 48

約数和(自身を含む): 38218089600

約数和(自身を除く): 18058125950

約数列:

[1, 2, 5, 10, 25, 50, 71, 142, 199, 355, 398, 710, 995, 1775, 1990, 3550, 4975, 9950, 14129, 28258, 28537, 57074, 70645, 141290, 142685, 285370, 353225, 706450, 713425, 1426850, 2026127, 4052254, 5678863, 10130635, 11357726, 20261270, 28394315, 50653175, 56788630, 101306350, 141971575, 283943150, 403199273, 806398546, 2015996365, 4031992730, 10079981825, 20159963650]

約数ペア:

[(1, 20159963650), (2, 10079981825), (5, 4031992730), (10, 2015996365), (25, 806398546), (50, 403199273), (71, 283943150), (142, 141971575), (199, 101306350), (355, 56788630), (398, 50653175), (710, 28394315), (995, 20261270), (1775, 11357726), (1990, 10130635), (3550, 5678863), (4975, 4052254), (9950, 2026127), (14129, 1426850), (28258, 713425), (28537, 706450), (57074, 353225), (70645, 285370), (141290, 142685)]