68410420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{211}}^1$

素因数の和:305

約数の個数: 96

約数和(自身を含む): 164545920

約数和(自身を除く): 96135500

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 29, 43, 52, 58, 65, 86, 116, 130, 145, 172, 211, 215, 260, 290, 377, 422, 430, 559, 580, 754, 844, 860, 1055, 1118, 1247, 1508, 1885, 2110, 2236, 2494, 2743, 2795, 3770, 4220, 4988, 5486, 5590, 6119, 6235, 7540, 9073, 10972, 11180, 12238, 12470, 13715, 16211, 18146, 24476, 24940, 27430, 30595, 32422, 36292, 45365, 54860, 61190, 64844, 79547, 81055, 90730, 117949, 122380, 159094, 162110, 181460, 235898, 263117, 318188, 324220, 397735, 471796, 526234, 589745, 795470, 1052468, 1179490, 1315585, 1590940, 2358980, 2631170, 3420521, 5262340, 6841042, 13682084, 17102605, 34205210, 68410420]

約数ペア:

[(1, 68410420), (2, 34205210), (4, 17102605), (5, 13682084), (10, 6841042), (13, 5262340), (20, 3420521), (26, 2631170), (29, 2358980), (43, 1590940), (52, 1315585), (58, 1179490), (65, 1052468), (86, 795470), (116, 589745), (130, 526234), (145, 471796), (172, 397735), (211, 324220), (215, 318188), (260, 263117), (290, 235898), (377, 181460), (422, 162110), (430, 159094), (559, 122380), (580, 117949), (754, 90730), (844, 81055), (860, 79547), (1055, 64844), (1118, 61190), (1247, 54860), (1508, 45365), (1885, 36292), (2110, 32422), (2236, 30595), (2494, 27430), (2743, 24940), (2795, 24476), (3770, 18146), (4220, 16211), (4988, 13715), (5486, 12470), (5590, 12238), (6119, 11180), (6235, 10972), (7540, 9073)]