285979420

素因数分解:

$2^2\times 5^1\times {\mathrm{353}}^1\times {\mathrm{40507}}^1$

素因数の和:40869

約数の個数: 24

約数和(自身を含む): 602272944

約数和(自身を除く): 316293524

約数列:

[1, 2, 4, 5, 10, 20, 353, 706, 1412, 1765, 3530, 7060, 40507, 81014, 162028, 202535, 405070, 810140, 14298971, 28597942, 57195884, 71494855, 142989710, 285979420]

約数ペア:

[(1, 285979420), (2, 142989710), (4, 71494855), (5, 57195884), (10, 28597942), (20, 14298971), (353, 810140), (706, 405070), (1412, 202535), (1765, 162028), (3530, 81014), (7060, 40507)]