90286820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{347257}}^1$

素因数の和:347279

約数の個数: 24

約数和(自身を含む): 204187704

約数和(自身を除く): 113900884

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 347257, 694514, 1389028, 1736285, 3472570, 4514341, 6945140, 9028682, 18057364, 22571705, 45143410, 90286820]

約数ペア:

[(1, 90286820), (2, 45143410), (4, 22571705), (5, 18057364), (10, 9028682), (13, 6945140), (20, 4514341), (26, 3472570), (52, 1736285), (65, 1389028), (130, 694514), (260, 347257)]