20405720176

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{59}}^1\times {\mathrm{502703}}^1$

素因数の和:502813

約数の個数: 40

約数和(自身を含む): 41141295360

約数和(自身を除く): 20735575184

約数列:

[1, 2, 4, 8, 16, 43, 59, 86, 118, 172, 236, 344, 472, 688, 944, 2537, 5074, 10148, 20296, 40592, 502703, 1005406, 2010812, 4021624, 8043248, 21616229, 29659477, 43232458, 59318954, 86464916, 118637908, 172929832, 237275816, 345859664, 474551632, 1275357511, 2550715022, 5101430044, 10202860088, 20405720176]

約数ペア:

[(1, 20405720176), (2, 10202860088), (4, 5101430044), (8, 2550715022), (16, 1275357511), (43, 474551632), (59, 345859664), (86, 237275816), (118, 172929832), (172, 118637908), (236, 86464916), (344, 59318954), (472, 43232458), (688, 29659477), (944, 21616229), (2537, 8043248), (5074, 4021624), (10148, 2010812), (20296, 1005406), (40592, 502703)]