399660

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{6661}}^1$

素因数の和:6673

約数の個数: 24

約数和(自身を含む): 1119216

約数和(自身を除く): 719556

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 6661, 13322, 19983, 26644, 33305, 39966, 66610, 79932, 99915, 133220, 199830, 399660]

約数ペア:

[(1, 399660), (2, 199830), (3, 133220), (4, 99915), (5, 79932), (6, 66610), (10, 39966), (12, 33305), (15, 26644), (20, 19983), (30, 13322), (60, 6661)]