201444980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{915659}}^1$

素因数の和:915679

約数の個数: 24

約数和(自身を含む): 461492640

約数和(自身を除く): 260047660

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 915659, 1831318, 3662636, 4578295, 9156590, 10072249, 18313180, 20144498, 40288996, 50361245, 100722490, 201444980]

約数ペア:

[(1, 201444980), (2, 100722490), (4, 50361245), (5, 40288996), (10, 20144498), (11, 18313180), (20, 10072249), (22, 9156590), (44, 4578295), (55, 3662636), (110, 1831318), (220, 915659)]