68400100

素因数分解:

$2^2\times 5^2\times {\mathrm{43}}^1\times {\mathrm{15907}}^1$

素因数の和:15964

約数の個数: 36

約数和(自身を含む): 151889584

約数和(自身を除く): 83489484

約数列:

[1, 2, 4, 5, 10, 20, 25, 43, 50, 86, 100, 172, 215, 430, 860, 1075, 2150, 4300, 15907, 31814, 63628, 79535, 159070, 318140, 397675, 684001, 795350, 1368002, 1590700, 2736004, 3420005, 6840010, 13680020, 17100025, 34200050, 68400100]

約数ペア:

[(1, 68400100), (2, 34200050), (4, 17100025), (5, 13680020), (10, 6840010), (20, 3420005), (25, 2736004), (43, 1590700), (50, 1368002), (86, 795350), (100, 684001), (172, 397675), (215, 318140), (430, 159070), (860, 79535), (1075, 63628), (2150, 31814), (4300, 15907)]