90506540

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{63737}}^1$

素因数の和:63817

約数の個数: 24

約数和(自身を含む): 192743712

約数和(自身を除く): 102237172

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 63737, 127474, 254948, 318685, 637370, 1274740, 4525327, 9050654, 18101308, 22626635, 45253270, 90506540]

約数ペア:

[(1, 90506540), (2, 45253270), (4, 22626635), (5, 18101308), (10, 9050654), (20, 4525327), (71, 1274740), (142, 637370), (284, 318685), (355, 254948), (710, 127474), (1420, 63737)]