8600215

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{181}}^1$

素因数の和:259

約数の個数: 32

約数和(自身を含む): 12108096

約数和(自身を除く): 3507881

約数列:

[1, 5, 13, 17, 43, 65, 85, 181, 215, 221, 559, 731, 905, 1105, 2353, 2795, 3077, 3655, 7783, 9503, 11765, 15385, 38915, 40001, 47515, 101179, 132311, 200005, 505895, 661555, 1720043, 8600215]

約数ペア:

[(1, 8600215), (5, 1720043), (13, 661555), (17, 505895), (43, 200005), (65, 132311), (85, 101179), (181, 47515), (215, 40001), (221, 38915), (559, 15385), (731, 11765), (905, 9503), (1105, 7783), (2353, 3655), (2795, 3077)]