81125520

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{1123}}^1$

素因数の和:1189

約数の個数: 160

約数和(自身を含む): 294362112

約数和(自身を除く): 213236592

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 43, 48, 56, 60, 70, 80, 84, 86, 105, 112, 120, 129, 140, 168, 172, 210, 215, 240, 258, 280, 301, 336, 344, 420, 430, 516, 560, 602, 645, 688, 840, 860, 903, 1032, 1123, 1204, 1290, 1505, 1680, 1720, 1806, 2064, 2246, 2408, 2580, 3010, 3369, 3440, 3612, 4492, 4515, 4816, 5160, 5615, 6020, 6738, 7224, 7861, 8984, 9030, 10320, 11230, 12040, 13476, 14448, 15722, 16845, 17968, 18060, 22460, 23583, 24080, 26952, 31444, 33690, 36120, 39305, 44920, 47166, 48289, 53904, 62888, 67380, 72240, 78610, 89840, 94332, 96578, 117915, 125776, 134760, 144867, 157220, 188664, 193156, 235830, 241445, 269520, 289734, 314440, 338023, 377328, 386312, 471660, 482890, 579468, 628880, 676046, 724335, 772624, 943320, 965780, 1014069, 1158936, 1352092, 1448670, 1690115, 1886640, 1931560, 2028138, 2317872, 2704184, 2897340, 3380230, 3863120, 4056276, 5070345, 5408368, 5794680, 6760460, 8112552, 10140690, 11589360, 13520920, 16225104, 20281380, 27041840, 40562760, 81125520]

約数ペア:

[(1, 81125520), (2, 40562760), (3, 27041840), (4, 20281380), (5, 16225104), (6, 13520920), (7, 11589360), (8, 10140690), (10, 8112552), (12, 6760460), (14, 5794680), (15, 5408368), (16, 5070345), (20, 4056276), (21, 3863120), (24, 3380230), (28, 2897340), (30, 2704184), (35, 2317872), (40, 2028138), (42, 1931560), (43, 1886640), (48, 1690115), (56, 1448670), (60, 1352092), (70, 1158936), (80, 1014069), (84, 965780), (86, 943320), (105, 772624), (112, 724335), (120, 676046), (129, 628880), (140, 579468), (168, 482890), (172, 471660), (210, 386312), (215, 377328), (240, 338023), (258, 314440), (280, 289734), (301, 269520), (336, 241445), (344, 235830), (420, 193156), (430, 188664), (516, 157220), (560, 144867), (602, 134760), (645, 125776), (688, 117915), (840, 96578), (860, 94332), (903, 89840), (1032, 78610), (1123, 72240), (1204, 67380), (1290, 62888), (1505, 53904), (1680, 48289), (1720, 47166), (1806, 44920), (2064, 39305), (2246, 36120), (2408, 33690), (2580, 31444), (3010, 26952), (3369, 24080), (3440, 23583), (3612, 22460), (4492, 18060), (4515, 17968), (4816, 16845), (5160, 15722), (5615, 14448), (6020, 13476), (6738, 12040), (7224, 11230), (7861, 10320), (8984, 9030)]