86905840

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{311}}^1\times {\mathrm{499}}^1$

素因数の和:830

約数の個数: 80

約数和(自身を含む): 232128000

約数和(自身を除く): 145222160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 311, 499, 560, 622, 998, 1244, 1555, 1996, 2177, 2488, 2495, 3110, 3493, 3992, 4354, 4976, 4990, 6220, 6986, 7984, 8708, 9980, 10885, 12440, 13972, 17416, 17465, 19960, 21770, 24880, 27944, 34832, 34930, 39920, 43540, 55888, 69860, 87080, 139720, 155189, 174160, 279440, 310378, 620756, 775945, 1086323, 1241512, 1551890, 2172646, 2483024, 3103780, 4345292, 5431615, 6207560, 8690584, 10863230, 12415120, 17381168, 21726460, 43452920, 86905840]

約数ペア:

[(1, 86905840), (2, 43452920), (4, 21726460), (5, 17381168), (7, 12415120), (8, 10863230), (10, 8690584), (14, 6207560), (16, 5431615), (20, 4345292), (28, 3103780), (35, 2483024), (40, 2172646), (56, 1551890), (70, 1241512), (80, 1086323), (112, 775945), (140, 620756), (280, 310378), (311, 279440), (499, 174160), (560, 155189), (622, 139720), (998, 87080), (1244, 69860), (1555, 55888), (1996, 43540), (2177, 39920), (2488, 34930), (2495, 34832), (3110, 27944), (3493, 24880), (3992, 21770), (4354, 19960), (4976, 17465), (4990, 17416), (6220, 13972), (6986, 12440), (7984, 10885), (8708, 9980)]