81609120

素因数分解:

$2^5\times 3^5\times 5^1\times {\mathrm{2099}}^1$

素因数の和:2129

約数の個数: 144

約数和(自身を含む): 288943200

約数和(自身を除く): 207334080

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 72, 80, 81, 90, 96, 108, 120, 135, 144, 160, 162, 180, 216, 240, 243, 270, 288, 324, 360, 405, 432, 480, 486, 540, 648, 720, 810, 864, 972, 1080, 1215, 1296, 1440, 1620, 1944, 2099, 2160, 2430, 2592, 3240, 3888, 4198, 4320, 4860, 6297, 6480, 7776, 8396, 9720, 10495, 12594, 12960, 16792, 18891, 19440, 20990, 25188, 31485, 33584, 37782, 38880, 41980, 50376, 56673, 62970, 67168, 75564, 83960, 94455, 100752, 113346, 125940, 151128, 167920, 170019, 188910, 201504, 226692, 251880, 283365, 302256, 335840, 340038, 377820, 453384, 503760, 510057, 566730, 604512, 680076, 755640, 850095, 906768, 1007520, 1020114, 1133460, 1360152, 1511280, 1700190, 1813536, 2040228, 2266920, 2550285, 2720304, 3022560, 3400380, 4080456, 4533840, 5100570, 5440608, 6800760, 8160912, 9067680, 10201140, 13601520, 16321824, 20402280, 27203040, 40804560, 81609120]

約数ペア:

[(1, 81609120), (2, 40804560), (3, 27203040), (4, 20402280), (5, 16321824), (6, 13601520), (8, 10201140), (9, 9067680), (10, 8160912), (12, 6800760), (15, 5440608), (16, 5100570), (18, 4533840), (20, 4080456), (24, 3400380), (27, 3022560), (30, 2720304), (32, 2550285), (36, 2266920), (40, 2040228), (45, 1813536), (48, 1700190), (54, 1511280), (60, 1360152), (72, 1133460), (80, 1020114), (81, 1007520), (90, 906768), (96, 850095), (108, 755640), (120, 680076), (135, 604512), (144, 566730), (160, 510057), (162, 503760), (180, 453384), (216, 377820), (240, 340038), (243, 335840), (270, 302256), (288, 283365), (324, 251880), (360, 226692), (405, 201504), (432, 188910), (480, 170019), (486, 167920), (540, 151128), (648, 125940), (720, 113346), (810, 100752), (864, 94455), (972, 83960), (1080, 75564), (1215, 67168), (1296, 62970), (1440, 56673), (1620, 50376), (1944, 41980), (2099, 38880), (2160, 37782), (2430, 33584), (2592, 31485), (3240, 25188), (3888, 20990), (4198, 19440), (4320, 18891), (4860, 16792), (6297, 12960), (6480, 12594), (7776, 10495), (8396, 9720)]