20279120

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{8741}}^1$

素因数の和:8783

約数の個数: 40

約数和(自身を含む): 48780360

約数和(自身を除く): 28501240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 40, 58, 80, 116, 145, 232, 290, 464, 580, 1160, 2320, 8741, 17482, 34964, 43705, 69928, 87410, 139856, 174820, 253489, 349640, 506978, 699280, 1013956, 1267445, 2027912, 2534890, 4055824, 5069780, 10139560, 20279120]

約数ペア:

[(1, 20279120), (2, 10139560), (4, 5069780), (5, 4055824), (8, 2534890), (10, 2027912), (16, 1267445), (20, 1013956), (29, 699280), (40, 506978), (58, 349640), (80, 253489), (116, 174820), (145, 139856), (232, 87410), (290, 69928), (464, 43705), (580, 34964), (1160, 17482), (2320, 8741)]