20624945

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{193}}^1$

素因数の和:305

約数の個数: 32

約数和(自身を含む): 28494720

約数和(自身を除く): 7869775

約数列:

[1, 5, 11, 29, 55, 67, 145, 193, 319, 335, 737, 965, 1595, 1943, 2123, 3685, 5597, 9715, 10615, 12931, 21373, 27985, 61567, 64655, 106865, 142241, 307835, 374999, 711205, 1874995, 4124989, 20624945]

約数ペア:

[(1, 20624945), (5, 4124989), (11, 1874995), (29, 711205), (55, 374999), (67, 307835), (145, 142241), (193, 106865), (319, 64655), (335, 61567), (737, 27985), (965, 21373), (1595, 12931), (1943, 10615), (2123, 9715), (3685, 5597)]