20177578

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{101}}^2$

素因数の和:270

約数の個数: 24

約数和(自身を含む): 32639904

約数和(自身を除く): 12462326

約数列:

[1, 2, 23, 43, 46, 86, 101, 202, 989, 1978, 2323, 4343, 4646, 8686, 10201, 20402, 99889, 199778, 234623, 438643, 469246, 877286, 10088789, 20177578]

約数ペア:

[(1, 20177578), (2, 10088789), (23, 877286), (43, 469246), (46, 438643), (86, 234623), (101, 199778), (202, 99889), (989, 20402), (1978, 10201), (2323, 8686), (4343, 4646)]