871306420

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{349}}^1\times {\mathrm{2903}}^1$

素因数の和:3304

約数の個数: 48

約数和(自身を含む): 1878307200

約数和(自身を除く): 1007000780

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 349, 430, 698, 860, 1396, 1745, 2903, 3490, 5806, 6980, 11612, 14515, 15007, 29030, 30014, 58060, 60028, 75035, 124829, 150070, 249658, 300140, 499316, 624145, 1013147, 1248290, 2026294, 2496580, 4052588, 5065735, 10131470, 20262940, 43565321, 87130642, 174261284, 217826605, 435653210, 871306420]

約数ペア:

[(1, 871306420), (2, 435653210), (4, 217826605), (5, 174261284), (10, 87130642), (20, 43565321), (43, 20262940), (86, 10131470), (172, 5065735), (215, 4052588), (349, 2496580), (430, 2026294), (698, 1248290), (860, 1013147), (1396, 624145), (1745, 499316), (2903, 300140), (3490, 249658), (5806, 150070), (6980, 124829), (11612, 75035), (14515, 60028), (15007, 58060), (29030, 30014)]