20772956

素因数分解:

$2^2\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{59}}^1\times {\mathrm{89}}^1$

素因数の和:218

約数の個数: 48

約数和(自身を含む): 39916800

約数和(自身を除く): 19143844

約数列:

[1, 2, 4, 23, 43, 46, 59, 86, 89, 92, 118, 172, 178, 236, 356, 989, 1357, 1978, 2047, 2537, 2714, 3827, 3956, 4094, 5074, 5251, 5428, 7654, 8188, 10148, 10502, 15308, 21004, 58351, 88021, 116702, 120773, 176042, 225793, 233404, 241546, 352084, 451586, 483092, 903172, 5193239, 10386478, 20772956]

約数ペア:

[(1, 20772956), (2, 10386478), (4, 5193239), (23, 903172), (43, 483092), (46, 451586), (59, 352084), (86, 241546), (89, 233404), (92, 225793), (118, 176042), (172, 120773), (178, 116702), (236, 88021), (356, 58351), (989, 21004), (1357, 15308), (1978, 10502), (2047, 10148), (2537, 8188), (2714, 7654), (3827, 5428), (3956, 5251), (4094, 5074)]