12390880

素因数分解:

$2^5\times 5^1\times {\mathrm{43}}^1\times {\mathrm{1801}}^1$

素因数の和:1859

約数の個数: 48

約数和(自身を含む): 29970864

約数和(自身を除く): 17579984

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, 1801, 3440, 3602, 6880, 7204, 9005, 14408, 18010, 28816, 36020, 57632, 72040, 77443, 144080, 154886, 288160, 309772, 387215, 619544, 774430, 1239088, 1548860, 2478176, 3097720, 6195440, 12390880]

約数ペア:

[(1, 12390880), (2, 6195440), (4, 3097720), (5, 2478176), (8, 1548860), (10, 1239088), (16, 774430), (20, 619544), (32, 387215), (40, 309772), (43, 288160), (80, 154886), (86, 144080), (160, 77443), (172, 72040), (215, 57632), (344, 36020), (430, 28816), (688, 18010), (860, 14408), (1376, 9005), (1720, 7204), (1801, 6880), (3440, 3602)]