18402420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{306707}}^1$

素因数の和:306719

約数の個数: 24

約数和(自身を含む): 51526944

約数和(自身を除く): 33124524

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 306707, 613414, 920121, 1226828, 1533535, 1840242, 3067070, 3680484, 4600605, 6134140, 9201210, 18402420]

約数ペア:

[(1, 18402420), (2, 9201210), (3, 6134140), (4, 4600605), (5, 3680484), (6, 3067070), (10, 1840242), (12, 1533535), (15, 1226828), (20, 920121), (30, 613414), (60, 306707)]