720376445

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{157}}^1\times {\mathrm{2347}}^1$

素因数の和:2549

約数の個数: 32

約数和(自身を含む): 961590528

約数和(自身を除く): 241214083

約数列:

[1, 5, 17, 23, 85, 115, 157, 391, 785, 1955, 2347, 2669, 3611, 11735, 13345, 18055, 39899, 53981, 61387, 199495, 269905, 306935, 368479, 917677, 1842395, 4588385, 6264143, 8475017, 31320715, 42375085, 144075289, 720376445]

約数ペア:

[(1, 720376445), (5, 144075289), (17, 42375085), (23, 31320715), (85, 8475017), (115, 6264143), (157, 4588385), (391, 1842395), (785, 917677), (1955, 368479), (2347, 306935), (2669, 269905), (3611, 199495), (11735, 61387), (13345, 53981), (18055, 39899)]