87489560

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{173}}^1\times {\mathrm{269}}^1$

素因数の和:500

約数の個数: 64

約数和(自身を含む): 202953600

約数和(自身を除く): 115464040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 173, 188, 235, 269, 346, 376, 470, 538, 692, 865, 940, 1076, 1345, 1384, 1730, 1880, 2152, 2690, 3460, 5380, 6920, 8131, 10760, 12643, 16262, 25286, 32524, 40655, 46537, 50572, 63215, 65048, 81310, 93074, 101144, 126430, 162620, 186148, 232685, 252860, 325240, 372296, 465370, 505720, 930740, 1861480, 2187239, 4374478, 8748956, 10936195, 17497912, 21872390, 43744780, 87489560]

約数ペア:

[(1, 87489560), (2, 43744780), (4, 21872390), (5, 17497912), (8, 10936195), (10, 8748956), (20, 4374478), (40, 2187239), (47, 1861480), (94, 930740), (173, 505720), (188, 465370), (235, 372296), (269, 325240), (346, 252860), (376, 232685), (470, 186148), (538, 162620), (692, 126430), (865, 101144), (940, 93074), (1076, 81310), (1345, 65048), (1384, 63215), (1730, 50572), (1880, 46537), (2152, 40655), (2690, 32524), (3460, 25286), (5380, 16262), (6920, 12643), (8131, 10760)]