87405808

素因数分解:

$2^4\times 7^2\times {\mathrm{111487}}^1$

素因数の和:111509

約数の個数: 30

約数和(自身を含む): 196999296

約数和(自身を除く): 109593488

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 49, 56, 98, 112, 196, 392, 784, 111487, 222974, 445948, 780409, 891896, 1560818, 1783792, 3121636, 5462863, 6243272, 10925726, 12486544, 21851452, 43702904, 87405808]

約数ペア:

[(1, 87405808), (2, 43702904), (4, 21851452), (7, 12486544), (8, 10925726), (14, 6243272), (16, 5462863), (28, 3121636), (49, 1783792), (56, 1560818), (98, 891896), (112, 780409), (196, 445948), (392, 222974), (784, 111487)]