28212020

素因数分解:

$2^2\times 5^1\times {\mathrm{1063}}^1\times {\mathrm{1327}}^1$

素因数の和:2399

約数の個数: 24

約数和(自身を含む): 59345664

約数和(自身を除く): 31133644

約数列:

[1, 2, 4, 5, 10, 20, 1063, 1327, 2126, 2654, 4252, 5308, 5315, 6635, 10630, 13270, 21260, 26540, 1410601, 2821202, 5642404, 7053005, 14106010, 28212020]

約数ペア:

[(1, 28212020), (2, 14106010), (4, 7053005), (5, 5642404), (10, 2821202), (20, 1410601), (1063, 26540), (1327, 21260), (2126, 13270), (2654, 10630), (4252, 6635), (5308, 5315)]