71226380

素因数分解:

$2^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{25621}}^1$

素因数の和:25769

約数の個数: 24

約数和(自身を含む): 150657360

約数和(自身を除く): 79430980

約数列:

[1, 2, 4, 5, 10, 20, 139, 278, 556, 695, 1390, 2780, 25621, 51242, 102484, 128105, 256210, 512420, 3561319, 7122638, 14245276, 17806595, 35613190, 71226380]

約数ペア:

[(1, 71226380), (2, 35613190), (4, 17806595), (5, 14245276), (10, 7122638), (20, 3561319), (139, 512420), (278, 256210), (556, 128105), (695, 102484), (1390, 51242), (2780, 25621)]