18104020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{7481}}^1$

素因数の和:7512

約数の個数: 36

約数和(自身を含む): 41794452

約数和(自身を除く): 23690432

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 220, 242, 484, 605, 1210, 2420, 7481, 14962, 29924, 37405, 74810, 82291, 149620, 164582, 329164, 411455, 822910, 905201, 1645820, 1810402, 3620804, 4526005, 9052010, 18104020]

約数ペア:

[(1, 18104020), (2, 9052010), (4, 4526005), (5, 3620804), (10, 1810402), (11, 1645820), (20, 905201), (22, 822910), (44, 411455), (55, 329164), (110, 164582), (121, 149620), (220, 82291), (242, 74810), (484, 37405), (605, 29924), (1210, 14962), (2420, 7481)]