19696180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{269}}^1\times {\mathrm{523}}^1$

素因数の和:808

約数の個数: 48

約数和(自身を含む): 47537280

約数和(自身を除く): 27841100

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 269, 523, 538, 1046, 1076, 1345, 1883, 2092, 2615, 2690, 3661, 3766, 5230, 5380, 7322, 7532, 9415, 10460, 14644, 18305, 18830, 36610, 37660, 73220, 140687, 281374, 562748, 703435, 984809, 1406870, 1969618, 2813740, 3939236, 4924045, 9848090, 19696180]

約数ペア:

[(1, 19696180), (2, 9848090), (4, 4924045), (5, 3939236), (7, 2813740), (10, 1969618), (14, 1406870), (20, 984809), (28, 703435), (35, 562748), (70, 281374), (140, 140687), (269, 73220), (523, 37660), (538, 36610), (1046, 18830), (1076, 18305), (1345, 14644), (1883, 10460), (2092, 9415), (2615, 7532), (2690, 7322), (3661, 5380), (3766, 5230)]