28780240

素因数分解:

$2^4\times 5^1\times {\mathrm{359753}}^1$

素因数の和:359766

約数の個数: 20

約数和(自身を含む): 66914244

約数和(自身を除く): 38134004

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 359753, 719506, 1439012, 1798765, 2878024, 3597530, 5756048, 7195060, 14390120, 28780240]

約数ペア:

[(1, 28780240), (2, 14390120), (4, 7195060), (5, 5756048), (8, 3597530), (10, 2878024), (16, 1798765), (20, 1439012), (40, 719506), (80, 359753)]