81977280

素因数分解:

$2^6\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{1109}}^1$

素因数の和:1147

約数の個数: 224

約数和(自身を含む): 324794880

約数和(自身を除く): 242817600

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 14, 15, 16, 20, 21, 22, 24, 28, 30, 32, 33, 35, 40, 42, 44, 48, 55, 56, 60, 64, 66, 70, 77, 80, 84, 88, 96, 105, 110, 112, 120, 132, 140, 154, 160, 165, 168, 176, 192, 210, 220, 224, 231, 240, 264, 280, 308, 320, 330, 336, 352, 385, 420, 440, 448, 462, 480, 528, 560, 616, 660, 672, 704, 770, 840, 880, 924, 960, 1056, 1109, 1120, 1155, 1232, 1320, 1344, 1540, 1680, 1760, 1848, 2112, 2218, 2240, 2310, 2464, 2640, 3080, 3327, 3360, 3520, 3696, 4436, 4620, 4928, 5280, 5545, 6160, 6654, 6720, 7392, 7763, 8872, 9240, 10560, 11090, 12199, 12320, 13308, 14784, 15526, 16635, 17744, 18480, 22180, 23289, 24398, 24640, 26616, 31052, 33270, 35488, 36597, 36960, 38815, 44360, 46578, 48796, 53232, 60995, 62104, 66540, 70976, 73194, 73920, 77630, 85393, 88720, 93156, 97592, 106464, 116445, 121990, 124208, 133080, 146388, 155260, 170786, 177440, 182985, 186312, 195184, 212928, 232890, 243980, 248416, 256179, 266160, 292776, 310520, 341572, 354880, 365970, 372624, 390368, 426965, 465780, 487960, 496832, 512358, 532320, 585552, 621040, 683144, 731940, 745248, 780736, 853930, 931560, 975920, 1024716, 1064640, 1171104, 1242080, 1280895, 1366288, 1463880, 1490496, 1707860, 1863120, 1951840, 2049432, 2342208, 2484160, 2561790, 2732576, 2927760, 3415720, 3726240, 3903680, 4098864, 5123580, 5465152, 5855520, 6831440, 7452480, 8197728, 10247160, 11711040, 13662880, 16395456, 20494320, 27325760, 40988640, 81977280]

約数ペア:

[(1, 81977280), (2, 40988640), (3, 27325760), (4, 20494320), (5, 16395456), (6, 13662880), (7, 11711040), (8, 10247160), (10, 8197728), (11, 7452480), (12, 6831440), (14, 5855520), (15, 5465152), (16, 5123580), (20, 4098864), (21, 3903680), (22, 3726240), (24, 3415720), (28, 2927760), (30, 2732576), (32, 2561790), (33, 2484160), (35, 2342208), (40, 2049432), (42, 1951840), (44, 1863120), (48, 1707860), (55, 1490496), (56, 1463880), (60, 1366288), (64, 1280895), (66, 1242080), (70, 1171104), (77, 1064640), (80, 1024716), (84, 975920), (88, 931560), (96, 853930), (105, 780736), (110, 745248), (112, 731940), (120, 683144), (132, 621040), (140, 585552), (154, 532320), (160, 512358), (165, 496832), (168, 487960), (176, 465780), (192, 426965), (210, 390368), (220, 372624), (224, 365970), (231, 354880), (240, 341572), (264, 310520), (280, 292776), (308, 266160), (320, 256179), (330, 248416), (336, 243980), (352, 232890), (385, 212928), (420, 195184), (440, 186312), (448, 182985), (462, 177440), (480, 170786), (528, 155260), (560, 146388), (616, 133080), (660, 124208), (672, 121990), (704, 116445), (770, 106464), (840, 97592), (880, 93156), (924, 88720), (960, 85393), (1056, 77630), (1109, 73920), (1120, 73194), (1155, 70976), (1232, 66540), (1320, 62104), (1344, 60995), (1540, 53232), (1680, 48796), (1760, 46578), (1848, 44360), (2112, 38815), (2218, 36960), (2240, 36597), (2310, 35488), (2464, 33270), (2640, 31052), (3080, 26616), (3327, 24640), (3360, 24398), (3520, 23289), (3696, 22180), (4436, 18480), (4620, 17744), (4928, 16635), (5280, 15526), (5545, 14784), (6160, 13308), (6654, 12320), (6720, 12199), (7392, 11090), (7763, 10560), (8872, 9240)]