68506740

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{167}}^1$

素因数の和:278

約数の個数: 144

約数和(自身を含む): 217945728

約数和(自身を除く): 149438988

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 43, 45, 53, 60, 86, 90, 106, 129, 159, 167, 172, 180, 212, 215, 258, 265, 318, 334, 387, 430, 477, 501, 516, 530, 636, 645, 668, 774, 795, 835, 860, 954, 1002, 1060, 1290, 1503, 1548, 1590, 1670, 1908, 1935, 2004, 2279, 2385, 2505, 2580, 3006, 3180, 3340, 3870, 4558, 4770, 5010, 6012, 6837, 7181, 7515, 7740, 8851, 9116, 9540, 10020, 11395, 13674, 14362, 15030, 17702, 20511, 21543, 22790, 26553, 27348, 28724, 30060, 34185, 35404, 35905, 41022, 43086, 44255, 45580, 53106, 64629, 68370, 71810, 79659, 82044, 86172, 88510, 102555, 106212, 107715, 129258, 132765, 136740, 143620, 159318, 177020, 205110, 215430, 258516, 265530, 318636, 323145, 380593, 398295, 410220, 430860, 531060, 646290, 761186, 796590, 1141779, 1292580, 1522372, 1593180, 1902965, 2283558, 3425337, 3805930, 4567116, 5708895, 6850674, 7611860, 11417790, 13701348, 17126685, 22835580, 34253370, 68506740]

約数ペア:

[(1, 68506740), (2, 34253370), (3, 22835580), (4, 17126685), (5, 13701348), (6, 11417790), (9, 7611860), (10, 6850674), (12, 5708895), (15, 4567116), (18, 3805930), (20, 3425337), (30, 2283558), (36, 1902965), (43, 1593180), (45, 1522372), (53, 1292580), (60, 1141779), (86, 796590), (90, 761186), (106, 646290), (129, 531060), (159, 430860), (167, 410220), (172, 398295), (180, 380593), (212, 323145), (215, 318636), (258, 265530), (265, 258516), (318, 215430), (334, 205110), (387, 177020), (430, 159318), (477, 143620), (501, 136740), (516, 132765), (530, 129258), (636, 107715), (645, 106212), (668, 102555), (774, 88510), (795, 86172), (835, 82044), (860, 79659), (954, 71810), (1002, 68370), (1060, 64629), (1290, 53106), (1503, 45580), (1548, 44255), (1590, 43086), (1670, 41022), (1908, 35905), (1935, 35404), (2004, 34185), (2279, 30060), (2385, 28724), (2505, 27348), (2580, 26553), (3006, 22790), (3180, 21543), (3340, 20511), (3870, 17702), (4558, 15030), (4770, 14362), (5010, 13674), (6012, 11395), (6837, 10020), (7181, 9540), (7515, 9116), (7740, 8851)]