20075984

素因数分解:

$2^4\times {\mathrm{251}}^1\times {\mathrm{4999}}^1$

素因数の和:5258

約数の個数: 20

約数和(自身を含む): 39060000

約数和(自身を除く): 18984016

約数列:

[1, 2, 4, 8, 16, 251, 502, 1004, 2008, 4016, 4999, 9998, 19996, 39992, 79984, 1254749, 2509498, 5018996, 10037992, 20075984]

約数ペア:

[(1, 20075984), (2, 10037992), (4, 5018996), (8, 2509498), (16, 1254749), (251, 79984), (502, 39992), (1004, 19996), (2008, 9998), (4016, 4999)]