19306540

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{127}}^1\times {\mathrm{691}}^1$

素因数の和:838

約数の個数: 48

約数和(自身を含む): 44642304

約数和(自身を除く): 25335764

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 127, 220, 254, 508, 635, 691, 1270, 1382, 1397, 2540, 2764, 2794, 3455, 5588, 6910, 6985, 7601, 13820, 13970, 15202, 27940, 30404, 38005, 76010, 87757, 152020, 175514, 351028, 438785, 877570, 965327, 1755140, 1930654, 3861308, 4826635, 9653270, 19306540]

約数ペア:

[(1, 19306540), (2, 9653270), (4, 4826635), (5, 3861308), (10, 1930654), (11, 1755140), (20, 965327), (22, 877570), (44, 438785), (55, 351028), (110, 175514), (127, 152020), (220, 87757), (254, 76010), (508, 38005), (635, 30404), (691, 27940), (1270, 15202), (1382, 13970), (1397, 13820), (2540, 7601), (2764, 6985), (2794, 6910), (3455, 5588)]