19763560

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{6959}}^1$

素因数の和:7041

約数の個数: 32

約数和(自身を含む): 45100800

約数和(自身を除く): 25337240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 6959, 13918, 27836, 34795, 55672, 69590, 139180, 278360, 494089, 988178, 1976356, 2470445, 3952712, 4940890, 9881780, 19763560]

約数ペア:

[(1, 19763560), (2, 9881780), (4, 4940890), (5, 3952712), (8, 2470445), (10, 1976356), (20, 988178), (40, 494089), (71, 278360), (142, 139180), (284, 69590), (355, 55672), (568, 34795), (710, 27836), (1420, 13918), (2840, 6959)]