20385290

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{3461}}^1$

素因数の和:3518

約数の個数: 32

約数和(自身を含む): 39882240

約数和(自身を除く): 19496950

約数列:

[1, 2, 5, 10, 19, 31, 38, 62, 95, 155, 190, 310, 589, 1178, 2945, 3461, 5890, 6922, 17305, 34610, 65759, 107291, 131518, 214582, 328795, 536455, 657590, 1072910, 2038529, 4077058, 10192645, 20385290]

約数ペア:

[(1, 20385290), (2, 10192645), (5, 4077058), (10, 2038529), (19, 1072910), (31, 657590), (38, 536455), (62, 328795), (95, 214582), (155, 131518), (190, 107291), (310, 65759), (589, 34610), (1178, 17305), (2945, 6922), (3461, 5890)]