71781020

素因数分解:

$2^2\times 5^1\times {\mathrm{1667}}^1\times {\mathrm{2153}}^1$

素因数の和:3829

約数の個数: 24

約数和(自身を含む): 150900624

約数和(自身を除く): 79119604

約数列:

[1, 2, 4, 5, 10, 20, 1667, 2153, 3334, 4306, 6668, 8335, 8612, 10765, 16670, 21530, 33340, 43060, 3589051, 7178102, 14356204, 17945255, 35890510, 71781020]

約数ペア:

[(1, 71781020), (2, 35890510), (4, 17945255), (5, 14356204), (10, 7178102), (20, 3589051), (1667, 43060), (2153, 33340), (3334, 21530), (4306, 16670), (6668, 10765), (8335, 8612)]