20195978

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{167}}^1\times {\mathrm{239}}^1$

素因数の和:442

約数の個数: 32

約数和(自身を含む): 34836480

約数和(自身を除く): 14640502

約数列:

[1, 2, 11, 22, 23, 46, 167, 239, 253, 334, 478, 506, 1837, 2629, 3674, 3841, 5258, 5497, 7682, 10994, 39913, 42251, 60467, 79826, 84502, 120934, 439043, 878086, 917999, 1835998, 10097989, 20195978]

約数ペア:

[(1, 20195978), (2, 10097989), (11, 1835998), (22, 917999), (23, 878086), (46, 439043), (167, 120934), (239, 84502), (253, 79826), (334, 60467), (478, 42251), (506, 39913), (1837, 10994), (2629, 7682), (3674, 5497), (3841, 5258)]