18320680

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{1109}}^1$

素因数の和:1186

約数の個数: 64

約数和(自身を含む): 47952000

約数和(自身を除く): 29631320

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 59, 70, 118, 140, 236, 280, 295, 413, 472, 590, 826, 1109, 1180, 1652, 2065, 2218, 2360, 3304, 4130, 4436, 5545, 7763, 8260, 8872, 11090, 15526, 16520, 22180, 31052, 38815, 44360, 62104, 65431, 77630, 130862, 155260, 261724, 310520, 327155, 458017, 523448, 654310, 916034, 1308620, 1832068, 2290085, 2617240, 3664136, 4580170, 9160340, 18320680]

約数ペア:

[(1, 18320680), (2, 9160340), (4, 4580170), (5, 3664136), (7, 2617240), (8, 2290085), (10, 1832068), (14, 1308620), (20, 916034), (28, 654310), (35, 523448), (40, 458017), (56, 327155), (59, 310520), (70, 261724), (118, 155260), (140, 130862), (236, 77630), (280, 65431), (295, 62104), (413, 44360), (472, 38815), (590, 31052), (826, 22180), (1109, 16520), (1180, 15526), (1652, 11090), (2065, 8872), (2218, 8260), (2360, 7763), (3304, 5545), (4130, 4436)]