515274640

素因数分解:

$2^4\times 5^1\times {\mathrm{6440933}}^1$

素因数の和:6440946

約数の個数: 20

約数和(自身を含む): 1198013724

約数和(自身を除く): 682739084

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 6440933, 12881866, 25763732, 32204665, 51527464, 64409330, 103054928, 128818660, 257637320, 515274640]

約数ペア:

[(1, 515274640), (2, 257637320), (4, 128818660), (5, 103054928), (8, 64409330), (10, 51527464), (16, 32204665), (20, 25763732), (40, 12881866), (80, 6440933)]