20560516

素因数分解:

$2^2\times {\mathrm{41}}^1\times {\mathrm{283}}^1\times {\mathrm{443}}^1$

素因数の和:771

約数の個数: 24

約数和(自身を含む): 37072224

約数和(自身を除く): 16511708

約数列:

[1, 2, 4, 41, 82, 164, 283, 443, 566, 886, 1132, 1772, 11603, 18163, 23206, 36326, 46412, 72652, 125369, 250738, 501476, 5140129, 10280258, 20560516]

約数ペア:

[(1, 20560516), (2, 10280258), (4, 5140129), (41, 501476), (82, 250738), (164, 125369), (283, 72652), (443, 46412), (566, 36326), (886, 23206), (1132, 18163), (1772, 11603)]