81822720

素因数分解:

$2^{10}\times 3^1\times 5^1\times 7^1\times {\mathrm{761}}^1$

素因数の和:796

約数の個数: 176

約数和(自身を含む): 299484288

約数和(自身を除く): 217661568

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 56, 60, 64, 70, 80, 84, 96, 105, 112, 120, 128, 140, 160, 168, 192, 210, 224, 240, 256, 280, 320, 336, 384, 420, 448, 480, 512, 560, 640, 672, 761, 768, 840, 896, 960, 1024, 1120, 1280, 1344, 1522, 1536, 1680, 1792, 1920, 2240, 2283, 2560, 2688, 3044, 3072, 3360, 3584, 3805, 3840, 4480, 4566, 5120, 5327, 5376, 6088, 6720, 7168, 7610, 7680, 8960, 9132, 10654, 10752, 11415, 12176, 13440, 15220, 15360, 15981, 17920, 18264, 21308, 21504, 22830, 24352, 26635, 26880, 30440, 31962, 35840, 36528, 42616, 45660, 48704, 53270, 53760, 60880, 63924, 73056, 79905, 85232, 91320, 97408, 106540, 107520, 121760, 127848, 146112, 159810, 170464, 182640, 194816, 213080, 243520, 255696, 292224, 319620, 340928, 365280, 389632, 426160, 487040, 511392, 584448, 639240, 681856, 730560, 779264, 852320, 974080, 1022784, 1168896, 1278480, 1363712, 1461120, 1704640, 1948160, 2045568, 2337792, 2556960, 2727424, 2922240, 3409280, 3896320, 4091136, 5113920, 5454848, 5844480, 6818560, 8182272, 10227840, 11688960, 13637120, 16364544, 20455680, 27274240, 40911360, 81822720]

約数ペア:

[(1, 81822720), (2, 40911360), (3, 27274240), (4, 20455680), (5, 16364544), (6, 13637120), (7, 11688960), (8, 10227840), (10, 8182272), (12, 6818560), (14, 5844480), (15, 5454848), (16, 5113920), (20, 4091136), (21, 3896320), (24, 3409280), (28, 2922240), (30, 2727424), (32, 2556960), (35, 2337792), (40, 2045568), (42, 1948160), (48, 1704640), (56, 1461120), (60, 1363712), (64, 1278480), (70, 1168896), (80, 1022784), (84, 974080), (96, 852320), (105, 779264), (112, 730560), (120, 681856), (128, 639240), (140, 584448), (160, 511392), (168, 487040), (192, 426160), (210, 389632), (224, 365280), (240, 340928), (256, 319620), (280, 292224), (320, 255696), (336, 243520), (384, 213080), (420, 194816), (448, 182640), (480, 170464), (512, 159810), (560, 146112), (640, 127848), (672, 121760), (761, 107520), (768, 106540), (840, 97408), (896, 91320), (960, 85232), (1024, 79905), (1120, 73056), (1280, 63924), (1344, 60880), (1522, 53760), (1536, 53270), (1680, 48704), (1792, 45660), (1920, 42616), (2240, 36528), (2283, 35840), (2560, 31962), (2688, 30440), (3044, 26880), (3072, 26635), (3360, 24352), (3584, 22830), (3805, 21504), (3840, 21308), (4480, 18264), (4566, 17920), (5120, 15981), (5327, 15360), (5376, 15220), (6088, 13440), (6720, 12176), (7168, 11415), (7610, 10752), (7680, 10654), (8960, 9132)]