9880120

素因数分解:

$2^3\times 5^1\times {\mathrm{139}}^1\times {\mathrm{1777}}^1$

素因数の和:1927

約数の個数: 32

約数和(自身を含む): 22402800

約数和(自身を除く): 12522680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 139, 278, 556, 695, 1112, 1390, 1777, 2780, 3554, 5560, 7108, 8885, 14216, 17770, 35540, 71080, 247003, 494006, 988012, 1235015, 1976024, 2470030, 4940060, 9880120]

約数ペア:

[(1, 9880120), (2, 4940060), (4, 2470030), (5, 1976024), (8, 1235015), (10, 988012), (20, 494006), (40, 247003), (139, 71080), (278, 35540), (556, 17770), (695, 14216), (1112, 8885), (1390, 7108), (1777, 5560), (2780, 3554)]