87880120

素因数分解:

$2^3\times 5^1\times {\mathrm{251}}^1\times {\mathrm{8753}}^1$

素因数の和:9015

約数の個数: 32

約数和(自身を含む): 198540720

約数和(自身を除く): 110660600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 251, 502, 1004, 1255, 2008, 2510, 5020, 8753, 10040, 17506, 35012, 43765, 70024, 87530, 175060, 350120, 2197003, 4394006, 8788012, 10985015, 17576024, 21970030, 43940060, 87880120]

約数ペア:

[(1, 87880120), (2, 43940060), (4, 21970030), (5, 17576024), (8, 10985015), (10, 8788012), (20, 4394006), (40, 2197003), (251, 350120), (502, 175060), (1004, 87530), (1255, 70024), (2008, 43765), (2510, 35012), (5020, 17506), (8753, 10040)]