2180505

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^2\times {\mathrm{503}}^1$

素因数の和:545

約数の個数: 24

約数和(自身を含む): 3713472

約数和(自身を除く): 1532967

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 289, 503, 867, 1445, 1509, 2515, 4335, 7545, 8551, 25653, 42755, 128265, 145367, 436101, 726835, 2180505]

約数ペア:

[(1, 2180505), (3, 726835), (5, 436101), (15, 145367), (17, 128265), (51, 42755), (85, 25653), (255, 8551), (289, 7545), (503, 4335), (867, 2515), (1445, 1509)]