87542780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{336703}}^1$

素因数の和:336725

約数の個数: 24

約数和(自身を含む): 197981952

約数和(自身を除く): 110439172

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 336703, 673406, 1346812, 1683515, 3367030, 4377139, 6734060, 8754278, 17508556, 21885695, 43771390, 87542780]

約数ペア:

[(1, 87542780), (2, 43771390), (4, 21885695), (5, 17508556), (10, 8754278), (13, 6734060), (20, 4377139), (26, 3367030), (52, 1683515), (65, 1346812), (130, 673406), (260, 336703)]