18922520

素因数分解:

$2^3\times 5^1\times {\mathrm{367}}^1\times {\mathrm{1289}}^1$

素因数の和:1667

約数の個数: 32

約数和(自身を含む): 42724800

約数和(自身を除く): 23802280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 367, 734, 1289, 1468, 1835, 2578, 2936, 3670, 5156, 6445, 7340, 10312, 12890, 14680, 25780, 51560, 473063, 946126, 1892252, 2365315, 3784504, 4730630, 9461260, 18922520]

約数ペア:

[(1, 18922520), (2, 9461260), (4, 4730630), (5, 3784504), (8, 2365315), (10, 1892252), (20, 946126), (40, 473063), (367, 51560), (734, 25780), (1289, 14680), (1468, 12890), (1835, 10312), (2578, 7340), (2936, 6445), (3670, 5156)]