21000478560

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{601}}^1\times {\mathrm{72797}}^1$

素因数の和:73416

約数の個数: 96

約数和(自身を含む): 66262486752

約数和(自身を除く): 45262008192

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 80, 96, 120, 160, 240, 480, 601, 1202, 1803, 2404, 3005, 3606, 4808, 6010, 7212, 9015, 9616, 12020, 14424, 18030, 19232, 24040, 28848, 36060, 48080, 57696, 72120, 72797, 96160, 144240, 145594, 218391, 288480, 291188, 363985, 436782, 582376, 727970, 873564, 1091955, 1164752, 1455940, 1747128, 2183910, 2329504, 2911880, 3494256, 4367820, 5823760, 6988512, 8735640, 11647520, 17471280, 34942560, 43750997, 87501994, 131252991, 175003988, 218754985, 262505982, 350007976, 437509970, 525011964, 656264955, 700015952, 875019940, 1050023928, 1312529910, 1400031904, 1750039880, 2100047856, 2625059820, 3500079760, 4200095712, 5250119640, 7000159520, 10500239280, 21000478560]

約数ペア:

[(1, 21000478560), (2, 10500239280), (3, 7000159520), (4, 5250119640), (5, 4200095712), (6, 3500079760), (8, 2625059820), (10, 2100047856), (12, 1750039880), (15, 1400031904), (16, 1312529910), (20, 1050023928), (24, 875019940), (30, 700015952), (32, 656264955), (40, 525011964), (48, 437509970), (60, 350007976), (80, 262505982), (96, 218754985), (120, 175003988), (160, 131252991), (240, 87501994), (480, 43750997), (601, 34942560), (1202, 17471280), (1803, 11647520), (2404, 8735640), (3005, 6988512), (3606, 5823760), (4808, 4367820), (6010, 3494256), (7212, 2911880), (9015, 2329504), (9616, 2183910), (12020, 1747128), (14424, 1455940), (18030, 1164752), (19232, 1091955), (24040, 873564), (28848, 727970), (36060, 582376), (48080, 436782), (57696, 363985), (72120, 291188), (72797, 288480), (96160, 218391), (144240, 145594)]