2644720

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{2543}}^1$

素因数の和:2569

約数の個数: 40

約数和(自身を含む): 6624576

約数和(自身を除く): 3979856

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 2543, 5086, 10172, 12715, 20344, 25430, 33059, 40688, 50860, 66118, 101720, 132236, 165295, 203440, 264472, 330590, 528944, 661180, 1322360, 2644720]

約数ペア:

[(1, 2644720), (2, 1322360), (4, 661180), (5, 528944), (8, 330590), (10, 264472), (13, 203440), (16, 165295), (20, 132236), (26, 101720), (40, 66118), (52, 50860), (65, 40688), (80, 33059), (104, 25430), (130, 20344), (208, 12715), (260, 10172), (520, 5086), (1040, 2543)]