15975720

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{199}}^1\times {\mathrm{223}}^1$

素因数の和:439

約数の個数: 96

約数和(自身を含む): 52416000

約数和(自身を除く): 36440280

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 199, 223, 360, 398, 446, 597, 669, 796, 892, 995, 1115, 1194, 1338, 1592, 1784, 1791, 1990, 2007, 2230, 2388, 2676, 2985, 3345, 3582, 3980, 4014, 4460, 4776, 5352, 5970, 6690, 7164, 7960, 8028, 8920, 8955, 10035, 11940, 13380, 14328, 16056, 17910, 20070, 23880, 26760, 35820, 40140, 44377, 71640, 80280, 88754, 133131, 177508, 221885, 266262, 355016, 399393, 443770, 532524, 665655, 798786, 887540, 1065048, 1331310, 1597572, 1775080, 1996965, 2662620, 3195144, 3993930, 5325240, 7987860, 15975720]

約数ペア:

[(1, 15975720), (2, 7987860), (3, 5325240), (4, 3993930), (5, 3195144), (6, 2662620), (8, 1996965), (9, 1775080), (10, 1597572), (12, 1331310), (15, 1065048), (18, 887540), (20, 798786), (24, 665655), (30, 532524), (36, 443770), (40, 399393), (45, 355016), (60, 266262), (72, 221885), (90, 177508), (120, 133131), (180, 88754), (199, 80280), (223, 71640), (360, 44377), (398, 40140), (446, 35820), (597, 26760), (669, 23880), (796, 20070), (892, 17910), (995, 16056), (1115, 14328), (1194, 13380), (1338, 11940), (1592, 10035), (1784, 8955), (1791, 8920), (1990, 8028), (2007, 7960), (2230, 7164), (2388, 6690), (2676, 5970), (2985, 5352), (3345, 4776), (3582, 4460), (3980, 4014)]