72229808

素因数分解:

$2^4\times 7^1\times {\mathrm{644909}}^1$

素因数の和:644924

約数の個数: 20

約数和(自身を含む): 159937680

約数和(自身を除く): 87707872

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 644909, 1289818, 2579636, 4514363, 5159272, 9028726, 10318544, 18057452, 36114904, 72229808]

約数ペア:

[(1, 72229808), (2, 36114904), (4, 18057452), (7, 10318544), (8, 9028726), (14, 5159272), (16, 4514363), (28, 2579636), (56, 1289818), (112, 644909)]