9866840

素因数分解:

$2^3\times 5^1\times {\mathrm{97}}^1\times {\mathrm{2543}}^1$

素因数の和:2651

約数の個数: 32

約数和(自身を含む): 22438080

約数和(自身を除く): 12571240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 97, 194, 388, 485, 776, 970, 1940, 2543, 3880, 5086, 10172, 12715, 20344, 25430, 50860, 101720, 246671, 493342, 986684, 1233355, 1973368, 2466710, 4933420, 9866840]

約数ペア:

[(1, 9866840), (2, 4933420), (4, 2466710), (5, 1973368), (8, 1233355), (10, 986684), (20, 493342), (40, 246671), (97, 101720), (194, 50860), (388, 25430), (485, 20344), (776, 12715), (970, 10172), (1940, 5086), (2543, 3880)]