2211880

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^2\times {\mathrm{457}}^1$

素因数の和:490

約数の個数: 48

約数和(自身を含む): 5482260

約数和(自身を除く): 3270380

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 121, 220, 242, 440, 457, 484, 605, 914, 968, 1210, 1828, 2285, 2420, 3656, 4570, 4840, 5027, 9140, 10054, 18280, 20108, 25135, 40216, 50270, 55297, 100540, 110594, 201080, 221188, 276485, 442376, 552970, 1105940, 2211880]

約数ペア:

[(1, 2211880), (2, 1105940), (4, 552970), (5, 442376), (8, 276485), (10, 221188), (11, 201080), (20, 110594), (22, 100540), (40, 55297), (44, 50270), (55, 40216), (88, 25135), (110, 20108), (121, 18280), (220, 10054), (242, 9140), (440, 5027), (457, 4840), (484, 4570), (605, 3656), (914, 2420), (968, 2285), (1210, 1828)]