2021134850

素因数分解:

$2^1\times 5^2\times 7^2\times {\mathrm{409}}^1\times {\mathrm{2017}}^1$

素因数の和:2452

約数の個数: 72

約数和(自身を含む): 4385941380

約数和(自身を除く): 2364806530

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 49, 50, 70, 98, 175, 245, 350, 409, 490, 818, 1225, 2017, 2045, 2450, 2863, 4034, 4090, 5726, 10085, 10225, 14119, 14315, 20041, 20170, 20450, 28238, 28630, 40082, 50425, 70595, 71575, 98833, 100205, 100850, 141190, 143150, 197666, 200410, 352975, 494165, 501025, 705950, 824953, 988330, 1002050, 1649906, 2470825, 4124765, 4941650, 5774671, 8249530, 11549342, 20623825, 28873355, 40422697, 41247650, 57746710, 80845394, 144366775, 202113485, 288733550, 404226970, 1010567425, 2021134850]

約数ペア:

[(1, 2021134850), (2, 1010567425), (5, 404226970), (7, 288733550), (10, 202113485), (14, 144366775), (25, 80845394), (35, 57746710), (49, 41247650), (50, 40422697), (70, 28873355), (98, 20623825), (175, 11549342), (245, 8249530), (350, 5774671), (409, 4941650), (490, 4124765), (818, 2470825), (1225, 1649906), (2017, 1002050), (2045, 988330), (2450, 824953), (2863, 705950), (4034, 501025), (4090, 494165), (5726, 352975), (10085, 200410), (10225, 197666), (14119, 143150), (14315, 141190), (20041, 100850), (20170, 100205), (20450, 98833), (28238, 71575), (28630, 70595), (40082, 50425)]