20401808

素因数分解:

$2^4\times 7^1\times {\mathrm{182159}}^1$

素因数の和:182174

約数の個数: 20

約数和(自身を含む): 45175680

約数和(自身を除く): 24773872

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 182159, 364318, 728636, 1275113, 1457272, 2550226, 2914544, 5100452, 10200904, 20401808]

約数ペア:

[(1, 20401808), (2, 10200904), (4, 5100452), (7, 2914544), (8, 2550226), (14, 1457272), (16, 1275113), (28, 728636), (56, 364318), (112, 182159)]