63888880

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{919}}^1$

素因数の和:1022

約数の個数: 80

約数和(自身を含む): 164275200

約数和(自身を除く): 100386320

約数列:

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

約数ペア:

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