80125780

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{81761}}^1$

素因数の和:81784

約数の個数: 36

約数和(自身を含む): 195738228

約数和(自身を除く): 115612448

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 81761, 163522, 327044, 408805, 572327, 817610, 1144654, 1635220, 2289308, 2861635, 4006289, 5723270, 8012578, 11446540, 16025156, 20031445, 40062890, 80125780]

約数ペア:

[(1, 80125780), (2, 40062890), (4, 20031445), (5, 16025156), (7, 11446540), (10, 8012578), (14, 5723270), (20, 4006289), (28, 2861635), (35, 2289308), (49, 1635220), (70, 1144654), (98, 817610), (140, 572327), (196, 408805), (245, 327044), (490, 163522), (980, 81761)]