80957720

素因数分解:

$2^3\times 5^1\times {\mathrm{113}}^1\times {\mathrm{17911}}^1$

素因数の和:18035

約数の個数: 32

約数和(自身を含む): 183777120

約数和(自身を除く): 102819400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 113, 226, 452, 565, 904, 1130, 2260, 4520, 17911, 35822, 71644, 89555, 143288, 179110, 358220, 716440, 2023943, 4047886, 8095772, 10119715, 16191544, 20239430, 40478860, 80957720]

約数ペア:

[(1, 80957720), (2, 40478860), (4, 20239430), (5, 16191544), (8, 10119715), (10, 8095772), (20, 4047886), (40, 2023943), (113, 716440), (226, 358220), (452, 179110), (565, 143288), (904, 89555), (1130, 71644), (2260, 35822), (4520, 17911)]