420885

素因数分解:

$3^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{199}}^1$

素因数の和:257

約数の個数: 24

約数和(自身を含む): 748800

約数和(自身を除く): 327915

約数列:

[1, 3, 5, 9, 15, 45, 47, 141, 199, 235, 423, 597, 705, 995, 1791, 2115, 2985, 8955, 9353, 28059, 46765, 84177, 140295, 420885]

約数ペア:

[(1, 420885), (3, 140295), (5, 84177), (9, 46765), (15, 28059), (45, 9353), (47, 8955), (141, 2985), (199, 2115), (235, 1791), (423, 995), (597, 705)]