20187821950

素因数分解:

$2^1\times 5^2\times {\mathrm{79}}^1\times {\mathrm{1039}}^1\times {\mathrm{4919}}^1$

素因数の和:6049

約数の個数: 48

約数和(自身を含む): 38068992000

約数和(自身を除く): 17881170050

約数列:

[1, 2, 5, 10, 25, 50, 79, 158, 395, 790, 1039, 1975, 2078, 3950, 4919, 5195, 9838, 10390, 24595, 25975, 49190, 51950, 82081, 122975, 164162, 245950, 388601, 410405, 777202, 820810, 1943005, 2052025, 3886010, 4104050, 5110841, 9715025, 10221682, 19430050, 25554205, 51108410, 127771025, 255542050, 403756439, 807512878, 2018782195, 4037564390, 10093910975, 20187821950]

約数ペア:

[(1, 20187821950), (2, 10093910975), (5, 4037564390), (10, 2018782195), (25, 807512878), (50, 403756439), (79, 255542050), (158, 127771025), (395, 51108410), (790, 25554205), (1039, 19430050), (1975, 10221682), (2078, 9715025), (3950, 5110841), (4919, 4104050), (5195, 3886010), (9838, 2052025), (10390, 1943005), (24595, 820810), (25975, 777202), (49190, 410405), (51950, 388601), (82081, 245950), (122975, 164162)]