8192620

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{97}}^1\times {\mathrm{103}}^1$

素因数の和:250

約数の個数: 48

約数和(自身を含む): 17978688

約数和(自身を除く): 9786068

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 97, 103, 164, 194, 205, 206, 388, 410, 412, 485, 515, 820, 970, 1030, 1940, 2060, 3977, 4223, 7954, 8446, 9991, 15908, 16892, 19885, 19982, 21115, 39770, 39964, 42230, 49955, 79540, 84460, 99910, 199820, 409631, 819262, 1638524, 2048155, 4096310, 8192620]

約数ペア:

[(1, 8192620), (2, 4096310), (4, 2048155), (5, 1638524), (10, 819262), (20, 409631), (41, 199820), (82, 99910), (97, 84460), (103, 79540), (164, 49955), (194, 42230), (205, 39964), (206, 39770), (388, 21115), (410, 19982), (412, 19885), (485, 16892), (515, 15908), (820, 9991), (970, 8446), (1030, 7954), (1940, 4223), (2060, 3977)]