678691490

素因数分解:

$2^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{199}}^1\times {\mathrm{5591}}^1$

素因数の和:5858

約数の個数: 32

約数和(自身を含む): 1248134400

約数和(自身を除く): 569442910

約数列:

[1, 2, 5, 10, 61, 122, 199, 305, 398, 610, 995, 1990, 5591, 11182, 12139, 24278, 27955, 55910, 60695, 121390, 341051, 682102, 1112609, 1705255, 2225218, 3410510, 5563045, 11126090, 67869149, 135738298, 339345745, 678691490]

約数ペア:

[(1, 678691490), (2, 339345745), (5, 135738298), (10, 67869149), (61, 11126090), (122, 5563045), (199, 3410510), (305, 2225218), (398, 1705255), (610, 1112609), (995, 682102), (1990, 341051), (5591, 121390), (11182, 60695), (12139, 55910), (24278, 27955)]