660880

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{751}}^1$

素因数の和:775

約数の個数: 40

約数和(自身を含む): 1678464

約数和(自身を除く): 1017584

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 751, 880, 1502, 3004, 3755, 6008, 7510, 8261, 12016, 15020, 16522, 30040, 33044, 41305, 60080, 66088, 82610, 132176, 165220, 330440, 660880]

約数ペア:

[(1, 660880), (2, 330440), (4, 165220), (5, 132176), (8, 82610), (10, 66088), (11, 60080), (16, 41305), (20, 33044), (22, 30040), (40, 16522), (44, 15020), (55, 12016), (80, 8261), (88, 7510), (110, 6008), (176, 3755), (220, 3004), (440, 1502), (751, 880)]