2018663960

素因数分解:

$2^3\times 5^1\times {\mathrm{199}}^1\times {\mathrm{253601}}^1$

素因数の和:253811

約数の個数: 32

約数和(自身を含む): 4564836000

約数和(自身を除く): 2546172040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 199, 398, 796, 995, 1592, 1990, 3980, 7960, 253601, 507202, 1014404, 1268005, 2028808, 2536010, 5072020, 10144040, 50466599, 100933198, 201866396, 252332995, 403732792, 504665990, 1009331980, 2018663960]

約数ペア:

[(1, 2018663960), (2, 1009331980), (4, 504665990), (5, 403732792), (8, 252332995), (10, 201866396), (20, 100933198), (40, 50466599), (199, 10144040), (398, 5072020), (796, 2536010), (995, 2028808), (1592, 1268005), (1990, 1014404), (3980, 507202), (7960, 253601)]