31332280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{317}}^1\times {\mathrm{353}}^1$

素因数の和:688

約数の個数: 64

約数和(自身を含む): 81051840

約数和(自身を除く): 49719560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 317, 353, 634, 706, 1268, 1412, 1585, 1765, 2219, 2471, 2536, 2824, 3170, 3530, 4438, 4942, 6340, 7060, 8876, 9884, 11095, 12355, 12680, 14120, 17752, 19768, 22190, 24710, 44380, 49420, 88760, 98840, 111901, 223802, 447604, 559505, 783307, 895208, 1119010, 1566614, 2238020, 3133228, 3916535, 4476040, 6266456, 7833070, 15666140, 31332280]

約数ペア:

[(1, 31332280), (2, 15666140), (4, 7833070), (5, 6266456), (7, 4476040), (8, 3916535), (10, 3133228), (14, 2238020), (20, 1566614), (28, 1119010), (35, 895208), (40, 783307), (56, 559505), (70, 447604), (140, 223802), (280, 111901), (317, 98840), (353, 88760), (634, 49420), (706, 44380), (1268, 24710), (1412, 22190), (1585, 19768), (1765, 17752), (2219, 14120), (2471, 12680), (2536, 12355), (2824, 11095), (3170, 9884), (3530, 8876), (4438, 7060), (4942, 6340)]