81485280

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{797}}^1$

素因数の和:889

約数の個数: 144

約数和(自身を含む): 282338784

約数和(自身を除く): 200853504

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 71, 72, 80, 90, 96, 120, 142, 144, 160, 180, 213, 240, 284, 288, 355, 360, 426, 480, 568, 639, 710, 720, 797, 852, 1065, 1136, 1278, 1420, 1440, 1594, 1704, 2130, 2272, 2391, 2556, 2840, 3188, 3195, 3408, 3985, 4260, 4782, 5112, 5680, 6376, 6390, 6816, 7173, 7970, 8520, 9564, 10224, 11360, 11955, 12752, 12780, 14346, 15940, 17040, 19128, 20448, 23910, 25504, 25560, 28692, 31880, 34080, 35865, 38256, 47820, 51120, 56587, 57384, 63760, 71730, 76512, 95640, 102240, 113174, 114768, 127520, 143460, 169761, 191280, 226348, 229536, 282935, 286920, 339522, 382560, 452696, 509283, 565870, 573840, 679044, 848805, 905392, 1018566, 1131740, 1147680, 1358088, 1697610, 1810784, 2037132, 2263480, 2546415, 2716176, 3395220, 4074264, 4526960, 5092830, 5432352, 6790440, 8148528, 9053920, 10185660, 13580880, 16297056, 20371320, 27161760, 40742640, 81485280]

約数ペア:

[(1, 81485280), (2, 40742640), (3, 27161760), (4, 20371320), (5, 16297056), (6, 13580880), (8, 10185660), (9, 9053920), (10, 8148528), (12, 6790440), (15, 5432352), (16, 5092830), (18, 4526960), (20, 4074264), (24, 3395220), (30, 2716176), (32, 2546415), (36, 2263480), (40, 2037132), (45, 1810784), (48, 1697610), (60, 1358088), (71, 1147680), (72, 1131740), (80, 1018566), (90, 905392), (96, 848805), (120, 679044), (142, 573840), (144, 565870), (160, 509283), (180, 452696), (213, 382560), (240, 339522), (284, 286920), (288, 282935), (355, 229536), (360, 226348), (426, 191280), (480, 169761), (568, 143460), (639, 127520), (710, 114768), (720, 113174), (797, 102240), (852, 95640), (1065, 76512), (1136, 71730), (1278, 63760), (1420, 57384), (1440, 56587), (1594, 51120), (1704, 47820), (2130, 38256), (2272, 35865), (2391, 34080), (2556, 31880), (2840, 28692), (3188, 25560), (3195, 25504), (3408, 23910), (3985, 20448), (4260, 19128), (4782, 17040), (5112, 15940), (5680, 14346), (6376, 12780), (6390, 12752), (6816, 11955), (7173, 11360), (7970, 10224), (8520, 9564)]