65638745

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{181}}^1$

素因数の和:317

約数の個数: 32

約数和(自身を含む): 85307040

約数和(自身を除く): 19668295

約数列:

[1, 5, 29, 41, 61, 145, 181, 205, 305, 905, 1189, 1769, 2501, 5249, 5945, 7421, 8845, 11041, 12505, 26245, 37105, 55205, 72529, 215209, 320189, 362645, 452681, 1076045, 1600945, 2263405, 13127749, 65638745]

約数ペア:

[(1, 65638745), (5, 13127749), (29, 2263405), (41, 1600945), (61, 1076045), (145, 452681), (181, 362645), (205, 320189), (305, 215209), (905, 72529), (1189, 55205), (1769, 37105), (2501, 26245), (5249, 12505), (5945, 11041), (7421, 8845)]