79398640

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{23081}}^1$

素因数の和:23137

約数の個数: 40

約数和(自身を含む): 188903088

約数和(自身を除く): 109504448

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 23081, 46162, 92324, 115405, 184648, 230810, 369296, 461620, 923240, 992483, 1846480, 1984966, 3969932, 4962415, 7939864, 9924830, 15879728, 19849660, 39699320, 79398640]

約数ペア:

[(1, 79398640), (2, 39699320), (4, 19849660), (5, 15879728), (8, 9924830), (10, 7939864), (16, 4962415), (20, 3969932), (40, 1984966), (43, 1846480), (80, 992483), (86, 923240), (172, 461620), (215, 369296), (344, 230810), (430, 184648), (688, 115405), (860, 92324), (1720, 46162), (3440, 23081)]