211722020

素因数分解:

$2^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{76159}}^1$

素因数の和:76307

約数の個数: 24

約数和(自身を含む): 447820800

約数和(自身を除く): 236098780

約数列:

[1, 2, 4, 5, 10, 20, 139, 278, 556, 695, 1390, 2780, 76159, 152318, 304636, 380795, 761590, 1523180, 10586101, 21172202, 42344404, 52930505, 105861010, 211722020]

約数ペア:

[(1, 211722020), (2, 105861010), (4, 52930505), (5, 42344404), (10, 21172202), (20, 10586101), (139, 1523180), (278, 761590), (556, 380795), (695, 304636), (1390, 152318), (2780, 76159)]