8649080

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^2\times {\mathrm{1787}}^1$

素因数の和:1820

約数の個数: 48

約数和(自身を含む): 21402360

約数和(自身を除く): 12753280

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, 1787, 2420, 3574, 4840, 7148, 8935, 14296, 17870, 19657, 35740, 39314, 71480, 78628, 98285, 157256, 196570, 216227, 393140, 432454, 786280, 864908, 1081135, 1729816, 2162270, 4324540, 8649080]

約数ペア:

[(1, 8649080), (2, 4324540), (4, 2162270), (5, 1729816), (8, 1081135), (10, 864908), (11, 786280), (20, 432454), (22, 393140), (40, 216227), (44, 196570), (55, 157256), (88, 98285), (110, 78628), (121, 71480), (220, 39314), (242, 35740), (440, 19657), (484, 17870), (605, 14296), (968, 8935), (1210, 7148), (1787, 4840), (2420, 3574)]