12000015

素因数分解:

$3^3\times 5^1\times {\mathrm{103}}^1\times {\mathrm{863}}^1$

素因数の和:980

約数の個数: 32

約数和(自身を含む): 21565440

約数和(自身を除く): 9565425

約数列:

[1, 3, 5, 9, 15, 27, 45, 103, 135, 309, 515, 863, 927, 1545, 2589, 2781, 4315, 4635, 7767, 12945, 13905, 23301, 38835, 88889, 116505, 266667, 444445, 800001, 1333335, 2400003, 4000005, 12000015]

約数ペア:

[(1, 12000015), (3, 4000005), (5, 2400003), (9, 1333335), (15, 800001), (27, 444445), (45, 266667), (103, 116505), (135, 88889), (309, 38835), (515, 23301), (863, 13905), (927, 12945), (1545, 7767), (2589, 4635), (2781, 4315)]