81247320

素因数分解:

$2^3\times 3^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{977}}^1$

素因数の和:1015

約数の個数: 256

約数和(自身を含む): 337996800

約数和(自身を除く): 256749480

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14, 15, 18, 20, 21, 22, 24, 27, 28, 30, 33, 35, 36, 40, 42, 44, 45, 54, 55, 56, 60, 63, 66, 70, 72, 77, 84, 88, 90, 99, 105, 108, 110, 120, 126, 132, 135, 140, 154, 165, 168, 180, 189, 198, 210, 216, 220, 231, 252, 264, 270, 280, 297, 308, 315, 330, 360, 378, 385, 396, 420, 440, 462, 495, 504, 540, 594, 616, 630, 660, 693, 756, 770, 792, 840, 924, 945, 977, 990, 1080, 1155, 1188, 1260, 1320, 1386, 1485, 1512, 1540, 1848, 1890, 1954, 1980, 2079, 2310, 2376, 2520, 2772, 2931, 2970, 3080, 3465, 3780, 3908, 3960, 4158, 4620, 4885, 5544, 5862, 5940, 6839, 6930, 7560, 7816, 8316, 8793, 9240, 9770, 10395, 10747, 11724, 11880, 13678, 13860, 14655, 16632, 17586, 19540, 20517, 20790, 21494, 23448, 26379, 27356, 27720, 29310, 32241, 34195, 35172, 39080, 41034, 41580, 42988, 43965, 52758, 53735, 54712, 58620, 61551, 64482, 68390, 70344, 75229, 82068, 83160, 85976, 87930, 96723, 102585, 105516, 107470, 117240, 123102, 128964, 131895, 136780, 150458, 161205, 164136, 175860, 184653, 193446, 205170, 211032, 214940, 225687, 246204, 257928, 263790, 273560, 290169, 300916, 307755, 322410, 351720, 369306, 376145, 386892, 410340, 429880, 451374, 483615, 492408, 527580, 580338, 601832, 615510, 644820, 677061, 738612, 752290, 773784, 820680, 902748, 923265, 967230, 1055160, 1128435, 1160676, 1231020, 1289640, 1354122, 1450845, 1477224, 1504580, 1805496, 1846530, 1934460, 2031183, 2256870, 2321352, 2462040, 2708244, 2901690, 3009160, 3385305, 3693060, 3868920, 4062366, 4513740, 5416488, 5803380, 6770610, 7386120, 8124732, 9027480, 10155915, 11606760, 13541220, 16249464, 20311830, 27082440, 40623660, 81247320]

約数ペア:

[(1, 81247320), (2, 40623660), (3, 27082440), (4, 20311830), (5, 16249464), (6, 13541220), (7, 11606760), (8, 10155915), (9, 9027480), (10, 8124732), (11, 7386120), (12, 6770610), (14, 5803380), (15, 5416488), (18, 4513740), (20, 4062366), (21, 3868920), (22, 3693060), (24, 3385305), (27, 3009160), (28, 2901690), (30, 2708244), (33, 2462040), (35, 2321352), (36, 2256870), (40, 2031183), (42, 1934460), (44, 1846530), (45, 1805496), (54, 1504580), (55, 1477224), (56, 1450845), (60, 1354122), (63, 1289640), (66, 1231020), (70, 1160676), (72, 1128435), (77, 1055160), (84, 967230), (88, 923265), (90, 902748), (99, 820680), (105, 773784), (108, 752290), (110, 738612), (120, 677061), (126, 644820), (132, 615510), (135, 601832), (140, 580338), (154, 527580), (165, 492408), (168, 483615), (180, 451374), (189, 429880), (198, 410340), (210, 386892), (216, 376145), (220, 369306), (231, 351720), (252, 322410), (264, 307755), (270, 300916), (280, 290169), (297, 273560), (308, 263790), (315, 257928), (330, 246204), (360, 225687), (378, 214940), (385, 211032), (396, 205170), (420, 193446), (440, 184653), (462, 175860), (495, 164136), (504, 161205), (540, 150458), (594, 136780), (616, 131895), (630, 128964), (660, 123102), (693, 117240), (756, 107470), (770, 105516), (792, 102585), (840, 96723), (924, 87930), (945, 85976), (977, 83160), (990, 82068), (1080, 75229), (1155, 70344), (1188, 68390), (1260, 64482), (1320, 61551), (1386, 58620), (1485, 54712), (1512, 53735), (1540, 52758), (1848, 43965), (1890, 42988), (1954, 41580), (1980, 41034), (2079, 39080), (2310, 35172), (2376, 34195), (2520, 32241), (2772, 29310), (2931, 27720), (2970, 27356), (3080, 26379), (3465, 23448), (3780, 21494), (3908, 20790), (3960, 20517), (4158, 19540), (4620, 17586), (4885, 16632), (5544, 14655), (5862, 13860), (5940, 13678), (6839, 11880), (6930, 11724), (7560, 10747), (7816, 10395), (8316, 9770), (8793, 9240)]