87806680

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{1289}}^1$

素因数の和:1444

約数の個数: 64

約数和(自身を含む): 214552800

約数和(自身を除く): 126746120

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 131, 260, 262, 520, 524, 655, 1048, 1289, 1310, 1703, 2578, 2620, 3406, 5156, 5240, 6445, 6812, 8515, 10312, 12890, 13624, 16757, 17030, 25780, 33514, 34060, 51560, 67028, 68120, 83785, 134056, 167570, 168859, 335140, 337718, 670280, 675436, 844295, 1350872, 1688590, 2195167, 3377180, 4390334, 6754360, 8780668, 10975835, 17561336, 21951670, 43903340, 87806680]

約数ペア:

[(1, 87806680), (2, 43903340), (4, 21951670), (5, 17561336), (8, 10975835), (10, 8780668), (13, 6754360), (20, 4390334), (26, 3377180), (40, 2195167), (52, 1688590), (65, 1350872), (104, 844295), (130, 675436), (131, 670280), (260, 337718), (262, 335140), (520, 168859), (524, 167570), (655, 134056), (1048, 83785), (1289, 68120), (1310, 67028), (1703, 51560), (2578, 34060), (2620, 33514), (3406, 25780), (5156, 17030), (5240, 16757), (6445, 13624), (6812, 12890), (8515, 10312)]