20552008

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{1049}}^1$

素因数の和:1165

約数の個数: 32

約数和(自身を含む): 40320000

約数和(自身を除く): 19767992

約数列:

[1, 2, 4, 8, 31, 62, 79, 124, 158, 248, 316, 632, 1049, 2098, 2449, 4196, 4898, 8392, 9796, 19592, 32519, 65038, 82871, 130076, 165742, 260152, 331484, 662968, 2569001, 5138002, 10276004, 20552008]

約数ペア:

[(1, 20552008), (2, 10276004), (4, 5138002), (8, 2569001), (31, 662968), (62, 331484), (79, 260152), (124, 165742), (158, 130076), (248, 82871), (316, 65038), (632, 32519), (1049, 19592), (2098, 9796), (2449, 8392), (4196, 4898)]