20411890

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{2027}}^1$

素因数の和:2106

約数の個数: 32

約数和(自身を含む): 39424320

約数和(自身を除く): 19012430

約数列:

[1, 2, 5, 10, 19, 38, 53, 95, 106, 190, 265, 530, 1007, 2014, 2027, 4054, 5035, 10070, 10135, 20270, 38513, 77026, 107431, 192565, 214862, 385130, 537155, 1074310, 2041189, 4082378, 10205945, 20411890]

約数ペア:

[(1, 20411890), (2, 10205945), (5, 4082378), (10, 2041189), (19, 1074310), (38, 537155), (53, 385130), (95, 214862), (106, 192565), (190, 107431), (265, 77026), (530, 38513), (1007, 20270), (2014, 10135), (2027, 10070), (4054, 5035)]