20910085

素因数分解:

$5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{113}}^1\times {\mathrm{311}}^1$

素因数の和:453

約数の個数: 32

約数和(自身を含む): 30730752

約数和(自身を除く): 9820667

約数列:

[1, 5, 7, 17, 35, 85, 113, 119, 311, 565, 595, 791, 1555, 1921, 2177, 3955, 5287, 9605, 10885, 13447, 26435, 35143, 37009, 67235, 175715, 185045, 246001, 597431, 1230005, 2987155, 4182017, 20910085]

約数ペア:

[(1, 20910085), (5, 4182017), (7, 2987155), (17, 1230005), (35, 597431), (85, 246001), (113, 185045), (119, 175715), (311, 67235), (565, 37009), (595, 35143), (791, 26435), (1555, 13447), (1921, 10885), (2177, 9605), (3955, 5287)]