205345870

素因数分解:

$2^1\times 5^1\times {\mathrm{509}}^1\times {\mathrm{40343}}^1$

素因数の和:40859

約数の個数: 16

約数和(自身を含む): 370357920

約数和(自身を除く): 165012050

約数列:

[1, 2, 5, 10, 509, 1018, 2545, 5090, 40343, 80686, 201715, 403430, 20534587, 41069174, 102672935, 205345870]

約数ペア:

[(1, 205345870), (2, 102672935), (5, 41069174), (10, 20534587), (509, 403430), (1018, 201715), (2545, 80686), (5090, 40343)]