87211160

素因数分解:

$2^3\times 5^1\times {\mathrm{281}}^1\times {\mathrm{7759}}^1$

素因数の和:8051

約数の個数: 32

約数和(自身を含む): 196948800

約数和(自身を除く): 109737640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 281, 562, 1124, 1405, 2248, 2810, 5620, 7759, 11240, 15518, 31036, 38795, 62072, 77590, 155180, 310360, 2180279, 4360558, 8721116, 10901395, 17442232, 21802790, 43605580, 87211160]

約数ペア:

[(1, 87211160), (2, 43605580), (4, 21802790), (5, 17442232), (8, 10901395), (10, 8721116), (20, 4360558), (40, 2180279), (281, 310360), (562, 155180), (1124, 77590), (1405, 62072), (2248, 38795), (2810, 31036), (5620, 15518), (7759, 11240)]