66842680

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^2\times {\mathrm{1987}}^1$

素因数の和:2056

約数の個数: 48

約数和(自身を含む): 155839320

約数和(自身を除く): 88996640

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 145, 232, 290, 580, 841, 1160, 1682, 1987, 3364, 3974, 4205, 6728, 7948, 8410, 9935, 15896, 16820, 19870, 33640, 39740, 57623, 79480, 115246, 230492, 288115, 460984, 576230, 1152460, 1671067, 2304920, 3342134, 6684268, 8355335, 13368536, 16710670, 33421340, 66842680]

約数ペア:

[(1, 66842680), (2, 33421340), (4, 16710670), (5, 13368536), (8, 8355335), (10, 6684268), (20, 3342134), (29, 2304920), (40, 1671067), (58, 1152460), (116, 576230), (145, 460984), (232, 288115), (290, 230492), (580, 115246), (841, 79480), (1160, 57623), (1682, 39740), (1987, 33640), (3364, 19870), (3974, 16820), (4205, 15896), (6728, 9935), (7948, 8410)]