80871800

素因数分解:

$2^3\times 5^2\times {\mathrm{281}}^1\times {\mathrm{1439}}^1$

素因数の和:1736

約数の個数: 48

約数和(自身を含む): 188827200

約数和(自身を除く): 107955400

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 281, 562, 1124, 1405, 1439, 2248, 2810, 2878, 5620, 5756, 7025, 7195, 11240, 11512, 14050, 14390, 28100, 28780, 35975, 56200, 57560, 71950, 143900, 287800, 404359, 808718, 1617436, 2021795, 3234872, 4043590, 8087180, 10108975, 16174360, 20217950, 40435900, 80871800]

約数ペア:

[(1, 80871800), (2, 40435900), (4, 20217950), (5, 16174360), (8, 10108975), (10, 8087180), (20, 4043590), (25, 3234872), (40, 2021795), (50, 1617436), (100, 808718), (200, 404359), (281, 287800), (562, 143900), (1124, 71950), (1405, 57560), (1439, 56200), (2248, 35975), (2810, 28780), (2878, 28100), (5620, 14390), (5756, 14050), (7025, 11512), (7195, 11240)]