127931375

素因数分解:

$5^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{421}}^1$

素因数の和:477

約数の個数: 64

約数和(自身を含む): 199075968

約数和(自身を除く): 71144593

約数列:

[1, 5, 11, 13, 17, 25, 55, 65, 85, 125, 143, 187, 221, 275, 325, 421, 425, 715, 935, 1105, 1375, 1625, 2105, 2125, 2431, 3575, 4631, 4675, 5473, 5525, 7157, 10525, 12155, 17875, 23155, 23375, 27365, 27625, 35785, 52625, 60203, 60775, 78727, 93041, 115775, 136825, 178925, 301015, 303875, 393635, 465205, 578875, 684125, 894625, 1023451, 1505075, 1968175, 2326025, 5117255, 7525375, 9840875, 11630125, 25586275, 127931375]

約数ペア:

[(1, 127931375), (5, 25586275), (11, 11630125), (13, 9840875), (17, 7525375), (25, 5117255), (55, 2326025), (65, 1968175), (85, 1505075), (125, 1023451), (143, 894625), (187, 684125), (221, 578875), (275, 465205), (325, 393635), (421, 303875), (425, 301015), (715, 178925), (935, 136825), (1105, 115775), (1375, 93041), (1625, 78727), (2105, 60775), (2125, 60203), (2431, 52625), (3575, 35785), (4631, 27625), (4675, 27365), (5473, 23375), (5525, 23155), (7157, 17875), (10525, 12155)]