28894180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{179}}^1\times {\mathrm{1153}}^1$

素因数の和:1348

約数の個数: 48

約数和(自身を含む): 69793920

約数和(自身を除く): 40899740

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 179, 358, 716, 895, 1153, 1253, 1790, 2306, 2506, 3580, 4612, 5012, 5765, 6265, 8071, 11530, 12530, 16142, 23060, 25060, 32284, 40355, 80710, 161420, 206387, 412774, 825548, 1031935, 1444709, 2063870, 2889418, 4127740, 5778836, 7223545, 14447090, 28894180]

約数ペア:

[(1, 28894180), (2, 14447090), (4, 7223545), (5, 5778836), (7, 4127740), (10, 2889418), (14, 2063870), (20, 1444709), (28, 1031935), (35, 825548), (70, 412774), (140, 206387), (179, 161420), (358, 80710), (716, 40355), (895, 32284), (1153, 25060), (1253, 23060), (1790, 16142), (2306, 12530), (2506, 11530), (3580, 8071), (4612, 6265), (5012, 5765)]