17705680

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{5147}}^1$

素因数の和:5203

約数の個数: 40

約数和(自身を含む): 42131232

約数和(自身を除く): 24425552

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 5147, 10294, 20588, 25735, 41176, 51470, 82352, 102940, 205880, 221321, 411760, 442642, 885284, 1106605, 1770568, 2213210, 3541136, 4426420, 8852840, 17705680]

約数ペア:

[(1, 17705680), (2, 8852840), (4, 4426420), (5, 3541136), (8, 2213210), (10, 1770568), (16, 1106605), (20, 885284), (40, 442642), (43, 411760), (80, 221321), (86, 205880), (172, 102940), (215, 82352), (344, 51470), (430, 41176), (688, 25735), (860, 20588), (1720, 10294), (3440, 5147)]