19885710

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{50989}}^1$

素因数の和:51012

約数の個数: 32

約数和(自身を含む): 51397920

約数和(自身を除く): 31512210

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 50989, 101978, 152967, 254945, 305934, 509890, 662857, 764835, 1325714, 1529670, 1988571, 3314285, 3977142, 6628570, 9942855, 19885710]

約数ペア:

[(1, 19885710), (2, 9942855), (3, 6628570), (5, 3977142), (6, 3314285), (10, 1988571), (13, 1529670), (15, 1325714), (26, 764835), (30, 662857), (39, 509890), (65, 305934), (78, 254945), (130, 152967), (195, 101978), (390, 50989)]