31465420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{317}}^1\times {\mathrm{709}}^1$

素因数の和:1042

約数の個数: 48

約数和(自身を含む): 75862080

約数和(自身を除く): 44396660

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 317, 634, 709, 1268, 1418, 1585, 2219, 2836, 3170, 3545, 4438, 4963, 6340, 7090, 8876, 9926, 11095, 14180, 19852, 22190, 24815, 44380, 49630, 99260, 224753, 449506, 899012, 1123765, 1573271, 2247530, 3146542, 4495060, 6293084, 7866355, 15732710, 31465420]

約数ペア:

[(1, 31465420), (2, 15732710), (4, 7866355), (5, 6293084), (7, 4495060), (10, 3146542), (14, 2247530), (20, 1573271), (28, 1123765), (35, 899012), (70, 449506), (140, 224753), (317, 99260), (634, 49630), (709, 44380), (1268, 24815), (1418, 22190), (1585, 19852), (2219, 14180), (2836, 11095), (3170, 9926), (3545, 8876), (4438, 7090), (4963, 6340)]