179620820

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{281}}^1\times {\mathrm{1031}}^1$

素因数の和:1352

約数の個数: 48

約数和(自身を含む): 391136256

約数和(自身を除く): 211515436

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 281, 310, 562, 620, 1031, 1124, 1405, 2062, 2810, 4124, 5155, 5620, 8711, 10310, 17422, 20620, 31961, 34844, 43555, 63922, 87110, 127844, 159805, 174220, 289711, 319610, 579422, 639220, 1158844, 1448555, 2897110, 5794220, 8981041, 17962082, 35924164, 44905205, 89810410, 179620820]

約数ペア:

[(1, 179620820), (2, 89810410), (4, 44905205), (5, 35924164), (10, 17962082), (20, 8981041), (31, 5794220), (62, 2897110), (124, 1448555), (155, 1158844), (281, 639220), (310, 579422), (562, 319610), (620, 289711), (1031, 174220), (1124, 159805), (1405, 127844), (2062, 87110), (2810, 63922), (4124, 43555), (5155, 34844), (5620, 31961), (8711, 20620), (10310, 17422)]