88881320

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{2557}}^1$

素因数の和:2658

約数の個数: 64

約数和(自身を含む): 221011200

約数和(自身を除く): 132129880

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 79, 88, 110, 158, 220, 316, 395, 440, 632, 790, 869, 1580, 1738, 2557, 3160, 3476, 4345, 5114, 6952, 8690, 10228, 12785, 17380, 20456, 25570, 28127, 34760, 51140, 56254, 102280, 112508, 140635, 202003, 225016, 281270, 404006, 562540, 808012, 1010015, 1125080, 1616024, 2020030, 2222033, 4040060, 4444066, 8080120, 8888132, 11110165, 17776264, 22220330, 44440660, 88881320]

約数ペア:

[(1, 88881320), (2, 44440660), (4, 22220330), (5, 17776264), (8, 11110165), (10, 8888132), (11, 8080120), (20, 4444066), (22, 4040060), (40, 2222033), (44, 2020030), (55, 1616024), (79, 1125080), (88, 1010015), (110, 808012), (158, 562540), (220, 404006), (316, 281270), (395, 225016), (440, 202003), (632, 140635), (790, 112508), (869, 102280), (1580, 56254), (1738, 51140), (2557, 34760), (3160, 28127), (3476, 25570), (4345, 20456), (5114, 17380), (6952, 12785), (8690, 10228)]