18320740

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{15017}}^1$

素因数の和:15087

約数の個数: 24

約数和(自身を含む): 39106872

約数和(自身を除く): 20786132

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 15017, 30034, 60068, 75085, 150170, 300340, 916037, 1832074, 3664148, 4580185, 9160370, 18320740]

約数ペア:

[(1, 18320740), (2, 9160370), (4, 4580185), (5, 3664148), (10, 1832074), (20, 916037), (61, 300340), (122, 150170), (244, 75085), (305, 60068), (610, 30034), (1220, 15017)]