90804980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{648607}}^1$

素因数の和:648623

約数の個数: 24

約数和(自身を含む): 217932288

約数和(自身を除く): 127127308

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 648607, 1297214, 2594428, 3243035, 4540249, 6486070, 9080498, 12972140, 18160996, 22701245, 45402490, 90804980]

約数ペア:

[(1, 90804980), (2, 45402490), (4, 22701245), (5, 18160996), (7, 12972140), (10, 9080498), (14, 6486070), (20, 4540249), (28, 3243035), (35, 2594428), (70, 1297214), (140, 648607)]