90811420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{648653}}^1$

素因数の和:648669

約数の個数: 24

約数和(自身を含む): 217947744

約数和(自身を除く): 127136324

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 648653, 1297306, 2594612, 3243265, 4540571, 6486530, 9081142, 12973060, 18162284, 22702855, 45405710, 90811420]

約数ペア:

[(1, 90811420), (2, 45405710), (4, 22702855), (5, 18162284), (7, 12973060), (10, 9081142), (14, 6486530), (20, 4540571), (28, 3243265), (35, 2594612), (70, 1297306), (140, 648653)]