19570840

素因数分解:

$2^3\times 5^1\times {\mathrm{673}}^1\times {\mathrm{727}}^1$

素因数の和:1411

約数の個数: 32

約数和(自身を含む): 44160480

約数和(自身を除く): 24589640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 673, 727, 1346, 1454, 2692, 2908, 3365, 3635, 5384, 5816, 6730, 7270, 13460, 14540, 26920, 29080, 489271, 978542, 1957084, 2446355, 3914168, 4892710, 9785420, 19570840]

約数ペア:

[(1, 19570840), (2, 9785420), (4, 4892710), (5, 3914168), (8, 2446355), (10, 1957084), (20, 978542), (40, 489271), (673, 29080), (727, 26920), (1346, 14540), (1454, 13460), (2692, 7270), (2908, 6730), (3365, 5816), (3635, 5384)]