81117960

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{8779}}^1$

素因数の和:8811

約数の個数: 128

約数和(自身を含む): 303436800

約数和(自身を除く): 222318840

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 14, 15, 20, 21, 22, 24, 28, 30, 33, 35, 40, 42, 44, 55, 56, 60, 66, 70, 77, 84, 88, 105, 110, 120, 132, 140, 154, 165, 168, 210, 220, 231, 264, 280, 308, 330, 385, 420, 440, 462, 616, 660, 770, 840, 924, 1155, 1320, 1540, 1848, 2310, 3080, 4620, 8779, 9240, 17558, 26337, 35116, 43895, 52674, 61453, 70232, 87790, 96569, 105348, 122906, 131685, 175580, 184359, 193138, 210696, 245812, 263370, 289707, 307265, 351160, 368718, 386276, 482845, 491624, 526740, 579414, 614530, 675983, 737436, 772552, 921795, 965690, 1053480, 1158828, 1229060, 1351966, 1448535, 1474872, 1843590, 1931380, 2027949, 2317656, 2458120, 2703932, 2897070, 3379915, 3687180, 3862760, 4055898, 5407864, 5794140, 6759830, 7374360, 8111796, 10139745, 11588280, 13519660, 16223592, 20279490, 27039320, 40558980, 81117960]

約数ペア:

[(1, 81117960), (2, 40558980), (3, 27039320), (4, 20279490), (5, 16223592), (6, 13519660), (7, 11588280), (8, 10139745), (10, 8111796), (11, 7374360), (12, 6759830), (14, 5794140), (15, 5407864), (20, 4055898), (21, 3862760), (22, 3687180), (24, 3379915), (28, 2897070), (30, 2703932), (33, 2458120), (35, 2317656), (40, 2027949), (42, 1931380), (44, 1843590), (55, 1474872), (56, 1448535), (60, 1351966), (66, 1229060), (70, 1158828), (77, 1053480), (84, 965690), (88, 921795), (105, 772552), (110, 737436), (120, 675983), (132, 614530), (140, 579414), (154, 526740), (165, 491624), (168, 482845), (210, 386276), (220, 368718), (231, 351160), (264, 307265), (280, 289707), (308, 263370), (330, 245812), (385, 210696), (420, 193138), (440, 184359), (462, 175580), (616, 131685), (660, 122906), (770, 105348), (840, 96569), (924, 87790), (1155, 70232), (1320, 61453), (1540, 52674), (1848, 43895), (2310, 35116), (3080, 26337), (4620, 17558), (8779, 9240)]