128775

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{101}}^1$

素因数の和:131

約数の個数: 24

約数和(自身を含む): 227664

約数和(自身を除く): 98889

約数列:

[1, 3, 5, 15, 17, 25, 51, 75, 85, 101, 255, 303, 425, 505, 1275, 1515, 1717, 2525, 5151, 7575, 8585, 25755, 42925, 128775]

約数ペア:

[(1, 128775), (3, 42925), (5, 25755), (15, 8585), (17, 7575), (25, 5151), (51, 2525), (75, 1717), (85, 1515), (101, 1275), (255, 505), (303, 425)]