31001180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{2803}}^1$

素因数の和:2898

約数の個数: 48

約数和(自身を含む): 75371520

約数和(自身を除く): 44370340

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 79, 140, 158, 316, 395, 553, 790, 1106, 1580, 2212, 2765, 2803, 5530, 5606, 11060, 11212, 14015, 19621, 28030, 39242, 56060, 78484, 98105, 196210, 221437, 392420, 442874, 885748, 1107185, 1550059, 2214370, 3100118, 4428740, 6200236, 7750295, 15500590, 31001180]

約数ペア:

[(1, 31001180), (2, 15500590), (4, 7750295), (5, 6200236), (7, 4428740), (10, 3100118), (14, 2214370), (20, 1550059), (28, 1107185), (35, 885748), (70, 442874), (79, 392420), (140, 221437), (158, 196210), (316, 98105), (395, 78484), (553, 56060), (790, 39242), (1106, 28030), (1580, 19621), (2212, 14015), (2765, 11212), (2803, 11060), (5530, 5606)]