28570520

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^2\times {\mathrm{5903}}^1$

素因数の和:5936

約数の個数: 48

約数和(自身を含む): 70670880

約数和(自身を除く): 42100360

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, 4840, 5903, 11806, 23612, 29515, 47224, 59030, 64933, 118060, 129866, 236120, 259732, 324665, 519464, 649330, 714263, 1298660, 1428526, 2597320, 2857052, 3571315, 5714104, 7142630, 14285260, 28570520]

約数ペア:

[(1, 28570520), (2, 14285260), (4, 7142630), (5, 5714104), (8, 3571315), (10, 2857052), (11, 2597320), (20, 1428526), (22, 1298660), (40, 714263), (44, 649330), (55, 519464), (88, 324665), (110, 259732), (121, 236120), (220, 129866), (242, 118060), (440, 64933), (484, 59030), (605, 47224), (968, 29515), (1210, 23612), (2420, 11806), (4840, 5903)]