20830225

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{599}}^1$

素因数の和:729

約数の個数: 24

約数和(自身を含む): 28123200

約数和(自身を除く): 7292975

約数列:

[1, 5, 13, 25, 65, 107, 325, 535, 599, 1391, 2675, 2995, 6955, 7787, 14975, 34775, 38935, 64093, 194675, 320465, 833209, 1602325, 4166045, 20830225]

約数ペア:

[(1, 20830225), (5, 4166045), (13, 1602325), (25, 833209), (65, 320465), (107, 194675), (325, 64093), (535, 38935), (599, 34775), (1391, 14975), (2675, 7787), (2995, 6955)]