20239240

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{41}}^2\times {\mathrm{43}}^1$

素因数の和:143

約数の個数: 96

約数和(自身を含む): 54584640

約数和(自身を除く): 34345400

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 41, 43, 56, 70, 82, 86, 140, 164, 172, 205, 215, 280, 287, 301, 328, 344, 410, 430, 574, 602, 820, 860, 1148, 1204, 1435, 1505, 1640, 1681, 1720, 1763, 2296, 2408, 2870, 3010, 3362, 3526, 5740, 6020, 6724, 7052, 8405, 8815, 11480, 11767, 12040, 12341, 13448, 14104, 16810, 17630, 23534, 24682, 33620, 35260, 47068, 49364, 58835, 61705, 67240, 70520, 72283, 94136, 98728, 117670, 123410, 144566, 235340, 246820, 289132, 361415, 470680, 493640, 505981, 578264, 722830, 1011962, 1445660, 2023924, 2529905, 2891320, 4047848, 5059810, 10119620, 20239240]

約数ペア:

[(1, 20239240), (2, 10119620), (4, 5059810), (5, 4047848), (7, 2891320), (8, 2529905), (10, 2023924), (14, 1445660), (20, 1011962), (28, 722830), (35, 578264), (40, 505981), (41, 493640), (43, 470680), (56, 361415), (70, 289132), (82, 246820), (86, 235340), (140, 144566), (164, 123410), (172, 117670), (205, 98728), (215, 94136), (280, 72283), (287, 70520), (301, 67240), (328, 61705), (344, 58835), (410, 49364), (430, 47068), (574, 35260), (602, 33620), (820, 24682), (860, 23534), (1148, 17630), (1204, 16810), (1435, 14104), (1505, 13448), (1640, 12341), (1681, 12040), (1720, 11767), (1763, 11480), (2296, 8815), (2408, 8405), (2870, 7052), (3010, 6724), (3362, 6020), (3526, 5740)]