31118240

素因数分解:

$2^5\times 5^1\times {\mathrm{43}}^1\times {\mathrm{4523}}^1$

素因数の和:4581

約数の個数: 48

約数和(自身を含む): 75243168

約数和(自身を除く): 44124928

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 43, 80, 86, 160, 172, 215, 344, 430, 688, 860, 1376, 1720, 3440, 4523, 6880, 9046, 18092, 22615, 36184, 45230, 72368, 90460, 144736, 180920, 194489, 361840, 388978, 723680, 777956, 972445, 1555912, 1944890, 3111824, 3889780, 6223648, 7779560, 15559120, 31118240]

約数ペア:

[(1, 31118240), (2, 15559120), (4, 7779560), (5, 6223648), (8, 3889780), (10, 3111824), (16, 1944890), (20, 1555912), (32, 972445), (40, 777956), (43, 723680), (80, 388978), (86, 361840), (160, 194489), (172, 180920), (215, 144736), (344, 90460), (430, 72368), (688, 45230), (860, 36184), (1376, 22615), (1720, 18092), (3440, 9046), (4523, 6880)]