1325173880

素因数分解:

$2^3\times 5^1\times {\mathrm{127}}^1\times {\mathrm{260861}}^1$

素因数の和:260999

約数の個数: 32

約数和(自身を含む): 3005130240

約数和(自身を除く): 1679956360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 127, 254, 508, 635, 1016, 1270, 2540, 5080, 260861, 521722, 1043444, 1304305, 2086888, 2608610, 5217220, 10434440, 33129347, 66258694, 132517388, 165646735, 265034776, 331293470, 662586940, 1325173880]

約数ペア:

[(1, 1325173880), (2, 662586940), (4, 331293470), (5, 265034776), (8, 165646735), (10, 132517388), (20, 66258694), (40, 33129347), (127, 10434440), (254, 5217220), (508, 2608610), (635, 2086888), (1016, 1304305), (1270, 1043444), (2540, 521722), (5080, 260861)]