201226780

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{141709}}^1$

素因数の和:141789

約数の個数: 24

約数和(自身を含む): 428531040

約数和(自身を除く): 227304260

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 141709, 283418, 566836, 708545, 1417090, 2834180, 10061339, 20122678, 40245356, 50306695, 100613390, 201226780]

約数ペア:

[(1, 201226780), (2, 100613390), (4, 50306695), (5, 40245356), (10, 20122678), (20, 10061339), (71, 2834180), (142, 1417090), (284, 708545), (355, 566836), (710, 283418), (1420, 141709)]