39644980

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{27919}}^1$

素因数の和:27999

約数の個数: 24

約数和(自身を含む): 84430080

約数和(自身を除く): 44785100

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 27919, 55838, 111676, 139595, 279190, 558380, 1982249, 3964498, 7928996, 9911245, 19822490, 39644980]

約数ペア:

[(1, 39644980), (2, 19822490), (4, 9911245), (5, 7928996), (10, 3964498), (20, 1982249), (71, 558380), (142, 279190), (284, 139595), (355, 111676), (710, 55838), (1420, 27919)]