18420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{307}}^1$

素因数の和:319

約数の個数: 24

約数和(自身を含む): 51744

約数和(自身を除く): 33324

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 307, 614, 921, 1228, 1535, 1842, 3070, 3684, 4605, 6140, 9210, 18420]

約数ペア:

[(1, 18420), (2, 9210), (3, 6140), (4, 4605), (5, 3684), (6, 3070), (10, 1842), (12, 1535), (15, 1228), (20, 921), (30, 614), (60, 307)]