78298870

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{19429}}^1$

素因数の和:19480

約数の個数: 32

約数和(自身を含む): 156683520

約数和(自身を除く): 78384650

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 130, 155, 310, 403, 806, 2015, 4030, 19429, 38858, 97145, 194290, 252577, 505154, 602299, 1204598, 1262885, 2525770, 3011495, 6022990, 7829887, 15659774, 39149435, 78298870]

約数ペア:

[(1, 78298870), (2, 39149435), (5, 15659774), (10, 7829887), (13, 6022990), (26, 3011495), (31, 2525770), (62, 1262885), (65, 1204598), (130, 602299), (155, 505154), (310, 252577), (403, 194290), (806, 97145), (2015, 38858), (4030, 19429)]