18447627740

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{857}}^1\times {\mathrm{26251}}^1$

素因数の和:27158

約数の個数: 48

約数和(自身を含む): 39732717024

約数和(自身を除く): 21285089284

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 857, 1714, 3428, 4285, 8570, 17140, 26251, 35137, 52502, 70274, 105004, 131255, 140548, 175685, 262510, 351370, 525020, 702740, 1076291, 2152582, 4305164, 5381455, 10762910, 21525820, 22497107, 44994214, 89988428, 112485535, 224971070, 449942140, 922381387, 1844762774, 3689525548, 4611906935, 9223813870, 18447627740]

約数ペア:

[(1, 18447627740), (2, 9223813870), (4, 4611906935), (5, 3689525548), (10, 1844762774), (20, 922381387), (41, 449942140), (82, 224971070), (164, 112485535), (205, 89988428), (410, 44994214), (820, 22497107), (857, 21525820), (1714, 10762910), (3428, 5381455), (4285, 4305164), (8570, 2152582), (17140, 1076291), (26251, 702740), (35137, 525020), (52502, 351370), (70274, 262510), (105004, 175685), (131255, 140548)]