38999925

素因数分解:

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

素因数の和:227

約数の個数: 72

約数和(自身を含む): 74474400

約数和(自身を除く): 35474475

約数列:

[1, 3, 5, 9, 15, 25, 29, 43, 45, 75, 87, 129, 139, 145, 215, 225, 261, 387, 417, 435, 645, 695, 725, 1075, 1247, 1251, 1305, 1935, 2085, 2175, 3225, 3475, 3741, 4031, 5977, 6235, 6255, 6525, 9675, 10425, 11223, 12093, 17931, 18705, 20155, 29885, 31175, 31275, 36279, 53793, 56115, 60465, 89655, 93525, 100775, 149425, 173333, 181395, 268965, 280575, 302325, 448275, 519999, 866665, 906975, 1344825, 1559997, 2599995, 4333325, 7799985, 12999975, 38999925]

約数ペア:

[(1, 38999925), (3, 12999975), (5, 7799985), (9, 4333325), (15, 2599995), (25, 1559997), (29, 1344825), (43, 906975), (45, 866665), (75, 519999), (87, 448275), (129, 302325), (139, 280575), (145, 268965), (215, 181395), (225, 173333), (261, 149425), (387, 100775), (417, 93525), (435, 89655), (645, 60465), (695, 56115), (725, 53793), (1075, 36279), (1247, 31275), (1251, 31175), (1305, 29885), (1935, 20155), (2085, 18705), (2175, 17931), (3225, 12093), (3475, 11223), (3741, 10425), (4031, 9675), (5977, 6525), (6235, 6255)]