138987180

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{17957}}^1$

素因数の和:18015

約数の個数: 72

約数和(自身を含む): 431422992

約数和(自身を除く): 292435812

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 43, 45, 60, 86, 90, 129, 172, 180, 215, 258, 387, 430, 516, 645, 774, 860, 1290, 1548, 1935, 2580, 3870, 7740, 17957, 35914, 53871, 71828, 89785, 107742, 161613, 179570, 215484, 269355, 323226, 359140, 538710, 646452, 772151, 808065, 1077420, 1544302, 1616130, 2316453, 3088604, 3232260, 3860755, 4632906, 6949359, 7721510, 9265812, 11582265, 13898718, 15443020, 23164530, 27797436, 34746795, 46329060, 69493590, 138987180]

約数ペア:

[(1, 138987180), (2, 69493590), (3, 46329060), (4, 34746795), (5, 27797436), (6, 23164530), (9, 15443020), (10, 13898718), (12, 11582265), (15, 9265812), (18, 7721510), (20, 6949359), (30, 4632906), (36, 3860755), (43, 3232260), (45, 3088604), (60, 2316453), (86, 1616130), (90, 1544302), (129, 1077420), (172, 808065), (180, 772151), (215, 646452), (258, 538710), (387, 359140), (430, 323226), (516, 269355), (645, 215484), (774, 179570), (860, 161613), (1290, 107742), (1548, 89785), (1935, 71828), (2580, 53871), (3870, 35914), (7740, 17957)]