138439725

素因数分解:

$3^1\times 5^2\times {\mathrm{103}}^1\times {\mathrm{17921}}^1$

素因数の和:18037

約数の個数: 24

約数和(自身を含む): 231122112

約数和(自身を除く): 92682387

約数列:

[1, 3, 5, 15, 25, 75, 103, 309, 515, 1545, 2575, 7725, 17921, 53763, 89605, 268815, 448025, 1344075, 1845863, 5537589, 9229315, 27687945, 46146575, 138439725]

約数ペア:

[(1, 138439725), (3, 46146575), (5, 27687945), (15, 9229315), (25, 5537589), (75, 1845863), (103, 1344075), (309, 448025), (515, 268815), (1545, 89605), (2575, 53763), (7725, 17921)]