15666820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{60257}}^1$

素因数の和:60279

約数の個数: 24

約数和(自身を含む): 35431704

約数和(自身を除く): 19764884

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 60257, 120514, 241028, 301285, 602570, 783341, 1205140, 1566682, 3133364, 3916705, 7833410, 15666820]

約数ペア:

[(1, 15666820), (2, 7833410), (4, 3916705), (5, 3133364), (10, 1566682), (13, 1205140), (20, 783341), (26, 602570), (52, 301285), (65, 241028), (130, 120514), (260, 60257)]