65219240

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{20639}}^1$

素因数の和:20729

約数の個数: 32

約数和(自身を含む): 148608000

約数和(自身を除く): 83388760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 158, 316, 395, 632, 790, 1580, 3160, 20639, 41278, 82556, 103195, 165112, 206390, 412780, 825560, 1630481, 3260962, 6521924, 8152405, 13043848, 16304810, 32609620, 65219240]

約数ペア:

[(1, 65219240), (2, 32609620), (4, 16304810), (5, 13043848), (8, 8152405), (10, 6521924), (20, 3260962), (40, 1630481), (79, 825560), (158, 412780), (316, 206390), (395, 165112), (632, 103195), (790, 82556), (1580, 41278), (3160, 20639)]