20131025560

素因数分解:

$2^3\times 5^1\times {\mathrm{1657}}^1\times {\mathrm{303727}}^1$

素因数の和:305395

約数の個数: 32

約数和(自身を含む): 45322292160

約数和(自身を除く): 25191266600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1657, 3314, 6628, 8285, 13256, 16570, 33140, 66280, 303727, 607454, 1214908, 1518635, 2429816, 3037270, 6074540, 12149080, 503275639, 1006551278, 2013102556, 2516378195, 4026205112, 5032756390, 10065512780, 20131025560]

約数ペア:

[(1, 20131025560), (2, 10065512780), (4, 5032756390), (5, 4026205112), (8, 2516378195), (10, 2013102556), (20, 1006551278), (40, 503275639), (1657, 12149080), (3314, 6074540), (6628, 3037270), (8285, 2429816), (13256, 1518635), (16570, 1214908), (33140, 607454), (66280, 303727)]