8487820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{941}}^1$

素因数の和:1002

約数の個数: 48

約数和(自身を含む): 19940256

約数和(自身を除く): 11452436

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 41, 44, 55, 82, 110, 164, 205, 220, 410, 451, 820, 902, 941, 1804, 1882, 2255, 3764, 4510, 4705, 9020, 9410, 10351, 18820, 20702, 38581, 41404, 51755, 77162, 103510, 154324, 192905, 207020, 385810, 424391, 771620, 848782, 1697564, 2121955, 4243910, 8487820]

約数ペア:

[(1, 8487820), (2, 4243910), (4, 2121955), (5, 1697564), (10, 848782), (11, 771620), (20, 424391), (22, 385810), (41, 207020), (44, 192905), (55, 154324), (82, 103510), (110, 77162), (164, 51755), (205, 41404), (220, 38581), (410, 20702), (451, 18820), (820, 10351), (902, 9410), (941, 9020), (1804, 4705), (1882, 4510), (2255, 3764)]