20328808

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{81971}}^1$

素因数の和:82008

約数の個数: 16

約数和(自身を含む): 39346560

約数和(自身を除く): 19017752

約数列:

[1, 2, 4, 8, 31, 62, 124, 248, 81971, 163942, 327884, 655768, 2541101, 5082202, 10164404, 20328808]

約数ペア:

[(1, 20328808), (2, 10164404), (4, 5082202), (8, 2541101), (31, 655768), (62, 327884), (124, 163942), (248, 81971)]