42788020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{17681}}^1$

素因数の和:17712

約数の個数: 36

約数和(自身を含む): 98771652

約数和(自身を除く): 55983632

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 220, 242, 484, 605, 1210, 2420, 17681, 35362, 70724, 88405, 176810, 194491, 353620, 388982, 777964, 972455, 1944910, 2139401, 3889820, 4278802, 8557604, 10697005, 21394010, 42788020]

約数ペア:

[(1, 42788020), (2, 21394010), (4, 10697005), (5, 8557604), (10, 4278802), (11, 3889820), (20, 2139401), (22, 1944910), (44, 972455), (55, 777964), (110, 388982), (121, 353620), (220, 194491), (242, 176810), (484, 88405), (605, 70724), (1210, 35362), (2420, 17681)]