20123261795

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{449}}^1\times {\mathrm{7577}}^1$

素因数の和:8064

約数の個数: 48

約数和(自身を含む): 29954318400

約数和(自身を除く): 9831056605

約数列:

[1, 5, 7, 13, 35, 65, 91, 169, 449, 455, 845, 1183, 2245, 3143, 5837, 5915, 7577, 15715, 29185, 37885, 40859, 53039, 75881, 98501, 204295, 265195, 379405, 492505, 531167, 689507, 1280513, 2655835, 3402073, 3447535, 6402565, 8963591, 17010365, 23814511, 44226949, 44817955, 119072555, 221134745, 309588643, 574950337, 1547943215, 2874751685, 4024652359, 20123261795]

約数ペア:

[(1, 20123261795), (5, 4024652359), (7, 2874751685), (13, 1547943215), (35, 574950337), (65, 309588643), (91, 221134745), (169, 119072555), (449, 44817955), (455, 44226949), (845, 23814511), (1183, 17010365), (2245, 8963591), (3143, 6402565), (5837, 3447535), (5915, 3402073), (7577, 2655835), (15715, 1280513), (29185, 689507), (37885, 531167), (40859, 492505), (53039, 379405), (75881, 265195), (98501, 204295)]