12999975

素因数分解:

$3^1\times 5^2\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{139}}^1$

素因数の和:224

約数の個数: 48

約数和(自身を含む): 22915200

約数和(自身を除く): 9915225

約数列:

[1, 3, 5, 15, 25, 29, 43, 75, 87, 129, 139, 145, 215, 417, 435, 645, 695, 725, 1075, 1247, 2085, 2175, 3225, 3475, 3741, 4031, 5977, 6235, 10425, 12093, 17931, 18705, 20155, 29885, 31175, 60465, 89655, 93525, 100775, 149425, 173333, 302325, 448275, 519999, 866665, 2599995, 4333325, 12999975]

約数ペア:

[(1, 12999975), (3, 4333325), (5, 2599995), (15, 866665), (25, 519999), (29, 448275), (43, 302325), (75, 173333), (87, 149425), (129, 100775), (139, 93525), (145, 89655), (215, 60465), (417, 31175), (435, 29885), (645, 20155), (695, 18705), (725, 17931), (1075, 12093), (1247, 10425), (2085, 6235), (2175, 5977), (3225, 4031), (3475, 3741)]