18780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{313}}^1$

素因数の和:325

約数の個数: 24

約数和(自身を含む): 52752

約数和(自身を除く): 33972

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 313, 626, 939, 1252, 1565, 1878, 3130, 3756, 4695, 6260, 9390, 18780]

約数ペア:

[(1, 18780), (2, 9390), (3, 6260), (4, 4695), (5, 3756), (6, 3130), (10, 1878), (12, 1565), (15, 1252), (20, 939), (30, 626), (60, 313)]