77974780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{299903}}^1$

素因数の和:299925

約数の個数: 24

約数和(自身を含む): 176343552

約数和(自身を除く): 98368772

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 299903, 599806, 1199612, 1499515, 2999030, 3898739, 5998060, 7797478, 15594956, 19493695, 38987390, 77974780]

約数ペア:

[(1, 77974780), (2, 38987390), (4, 19493695), (5, 15594956), (10, 7797478), (13, 5998060), (20, 3898739), (26, 2999030), (52, 1499515), (65, 1199612), (130, 599806), (260, 299903)]