127777760

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{919}}^1$

素因数の和:1024

約数の個数: 96

約数和(自身を含む): 333849600

約数和(自身を除く): 206071840

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 79, 80, 88, 110, 158, 160, 176, 220, 316, 352, 395, 440, 632, 790, 869, 880, 919, 1264, 1580, 1738, 1760, 1838, 2528, 3160, 3476, 3676, 4345, 4595, 6320, 6952, 7352, 8690, 9190, 10109, 12640, 13904, 14704, 17380, 18380, 20218, 27808, 29408, 34760, 36760, 40436, 50545, 69520, 72601, 73520, 80872, 101090, 139040, 145202, 147040, 161744, 202180, 290404, 323488, 363005, 404360, 580808, 726010, 798611, 808720, 1161616, 1452020, 1597222, 1617440, 2323232, 2904040, 3194444, 3993055, 5808080, 6388888, 7986110, 11616160, 12777776, 15972220, 25555552, 31944440, 63888880, 127777760]

約数ペア:

[(1, 127777760), (2, 63888880), (4, 31944440), (5, 25555552), (8, 15972220), (10, 12777776), (11, 11616160), (16, 7986110), (20, 6388888), (22, 5808080), (32, 3993055), (40, 3194444), (44, 2904040), (55, 2323232), (79, 1617440), (80, 1597222), (88, 1452020), (110, 1161616), (158, 808720), (160, 798611), (176, 726010), (220, 580808), (316, 404360), (352, 363005), (395, 323488), (440, 290404), (632, 202180), (790, 161744), (869, 147040), (880, 145202), (919, 139040), (1264, 101090), (1580, 80872), (1738, 73520), (1760, 72601), (1838, 69520), (2528, 50545), (3160, 40436), (3476, 36760), (3676, 34760), (4345, 29408), (4595, 27808), (6320, 20218), (6952, 18380), (7352, 17380), (8690, 14704), (9190, 13904), (10109, 12640)]