65894140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{253439}}^1$

素因数の和:253461

約数の個数: 24

約数和(自身を含む): 149022720

約数和(自身を除く): 83128580

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 253439, 506878, 1013756, 1267195, 2534390, 3294707, 5068780, 6589414, 13178828, 16473535, 32947070, 65894140]

約数ペア:

[(1, 65894140), (2, 32947070), (4, 16473535), (5, 13178828), (10, 6589414), (13, 5068780), (20, 3294707), (26, 2534390), (52, 1267195), (65, 1013756), (130, 506878), (260, 253439)]