201919780

素因数分解:

$2^2\times 5^1\times {\mathrm{941}}^1\times {\mathrm{10729}}^1$

素因数の和:11679

約数の個数: 24

約数和(自身を含む): 424521720

約数和(自身を除く): 222601940

約数列:

[1, 2, 4, 5, 10, 20, 941, 1882, 3764, 4705, 9410, 10729, 18820, 21458, 42916, 53645, 107290, 214580, 10095989, 20191978, 40383956, 50479945, 100959890, 201919780]

約数ペア:

[(1, 201919780), (2, 100959890), (4, 50479945), (5, 40383956), (10, 20191978), (20, 10095989), (941, 214580), (1882, 107290), (3764, 53645), (4705, 42916), (9410, 21458), (10729, 18820)]