127931480

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{78007}}^1$

素因数の和:78059

約数の個数: 32

約数和(自身を含む): 294870240

約数和(自身を除く): 166938760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 78007, 156014, 312028, 390035, 624056, 780070, 1560140, 3120280, 3198287, 6396574, 12793148, 15991435, 25586296, 31982870, 63965740, 127931480]

約数ペア:

[(1, 127931480), (2, 63965740), (4, 31982870), (5, 25586296), (8, 15991435), (10, 12793148), (20, 6396574), (40, 3198287), (41, 3120280), (82, 1560140), (164, 780070), (205, 624056), (328, 390035), (410, 312028), (820, 156014), (1640, 78007)]