11988680

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^2\times {\mathrm{2477}}^1$

素因数の和:2510

約数の個数: 48

約数和(自身を含む): 29661660

約数和(自身を除く): 17672980

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 121, 220, 242, 440, 484, 605, 968, 1210, 2420, 2477, 4840, 4954, 9908, 12385, 19816, 24770, 27247, 49540, 54494, 99080, 108988, 136235, 217976, 272470, 299717, 544940, 599434, 1089880, 1198868, 1498585, 2397736, 2997170, 5994340, 11988680]

約数ペア:

[(1, 11988680), (2, 5994340), (4, 2997170), (5, 2397736), (8, 1498585), (10, 1198868), (11, 1089880), (20, 599434), (22, 544940), (40, 299717), (44, 272470), (55, 217976), (88, 136235), (110, 108988), (121, 99080), (220, 54494), (242, 49540), (440, 27247), (484, 24770), (605, 19816), (968, 12385), (1210, 9908), (2420, 4954), (2477, 4840)]