81445616

素因数分解:

$2^4\times 7^1\times {\mathrm{233}}^1\times {\mathrm{3121}}^1$

素因数の和:3369

約数の個数: 40

約数和(自身を含む): 181175904

約数和(自身を除く): 99730288

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 233, 466, 932, 1631, 1864, 3121, 3262, 3728, 6242, 6524, 12484, 13048, 21847, 24968, 26096, 43694, 49936, 87388, 174776, 349552, 727193, 1454386, 2908772, 5090351, 5817544, 10180702, 11635088, 20361404, 40722808, 81445616]

約数ペア:

[(1, 81445616), (2, 40722808), (4, 20361404), (7, 11635088), (8, 10180702), (14, 5817544), (16, 5090351), (28, 2908772), (56, 1454386), (112, 727193), (233, 349552), (466, 174776), (932, 87388), (1631, 49936), (1864, 43694), (3121, 26096), (3262, 24968), (3728, 21847), (6242, 13048), (6524, 12484)]