380888980

素因数分解:

$2^2\times 5^1\times {\mathrm{709}}^1\times {\mathrm{26861}}^1$

素因数の和:27579

約数の個数: 24

約数和(自身を含む): 801024840

約数和(自身を除く): 420135860

約数列:

[1, 2, 4, 5, 10, 20, 709, 1418, 2836, 3545, 7090, 14180, 26861, 53722, 107444, 134305, 268610, 537220, 19044449, 38088898, 76177796, 95222245, 190444490, 380888980]

約数ペア:

[(1, 380888980), (2, 190444490), (4, 95222245), (5, 76177796), (10, 38088898), (20, 19044449), (709, 537220), (1418, 268610), (2836, 134305), (3545, 107444), (7090, 53722), (14180, 26861)]