12540305

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{73}}^1$

素因数の和:185

約数の個数: 32

約数和(自身を含む): 16879104

約数和(自身を除く): 4338799

約数列:

[1, 5, 17, 43, 47, 73, 85, 215, 235, 365, 731, 799, 1241, 2021, 3139, 3431, 3655, 3995, 6205, 10105, 15695, 17155, 34357, 53363, 58327, 147533, 171785, 266815, 291635, 737665, 2508061, 12540305]

約数ペア:

[(1, 12540305), (5, 2508061), (17, 737665), (43, 291635), (47, 266815), (73, 171785), (85, 147533), (215, 58327), (235, 53363), (365, 34357), (731, 17155), (799, 15695), (1241, 10105), (2021, 6205), (3139, 3995), (3431, 3655)]