31204880

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{541}}^1$

素因数の和:664

約数の個数: 80

約数和(自身を含む): 83875584

約数和(自身を除く): 52670704

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 103, 112, 140, 206, 280, 412, 515, 541, 560, 721, 824, 1030, 1082, 1442, 1648, 2060, 2164, 2705, 2884, 3605, 3787, 4120, 4328, 5410, 5768, 7210, 7574, 8240, 8656, 10820, 11536, 14420, 15148, 18935, 21640, 28840, 30296, 37870, 43280, 55723, 57680, 60592, 75740, 111446, 151480, 222892, 278615, 302960, 390061, 445784, 557230, 780122, 891568, 1114460, 1560244, 1950305, 2228920, 3120488, 3900610, 4457840, 6240976, 7801220, 15602440, 31204880]

約数ペア:

[(1, 31204880), (2, 15602440), (4, 7801220), (5, 6240976), (7, 4457840), (8, 3900610), (10, 3120488), (14, 2228920), (16, 1950305), (20, 1560244), (28, 1114460), (35, 891568), (40, 780122), (56, 557230), (70, 445784), (80, 390061), (103, 302960), (112, 278615), (140, 222892), (206, 151480), (280, 111446), (412, 75740), (515, 60592), (541, 57680), (560, 55723), (721, 43280), (824, 37870), (1030, 30296), (1082, 28840), (1442, 21640), (1648, 18935), (2060, 15148), (2164, 14420), (2705, 11536), (2884, 10820), (3605, 8656), (3787, 8240), (4120, 7574), (4328, 7210), (5410, 5768)]