72982780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{280703}}^1$

素因数の和:280725

約数の個数: 24

約数和(自身を含む): 165053952

約数和(自身を除く): 92071172

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 280703, 561406, 1122812, 1403515, 2807030, 3649139, 5614060, 7298278, 14596556, 18245695, 36491390, 72982780]

約数ペア:

[(1, 72982780), (2, 36491390), (4, 18245695), (5, 14596556), (10, 7298278), (13, 5614060), (20, 3649139), (26, 2807030), (52, 1403515), (65, 1122812), (130, 561406), (260, 280703)]