19364540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{1049}}^1$

素因数の和:1142

約数の個数: 48

約数和(自身を含む): 44452800

約数和(自身を除く): 25088260

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 71, 130, 142, 260, 284, 355, 710, 923, 1049, 1420, 1846, 2098, 3692, 4196, 4615, 5245, 9230, 10490, 13637, 18460, 20980, 27274, 54548, 68185, 74479, 136370, 148958, 272740, 297916, 372395, 744790, 968227, 1489580, 1936454, 3872908, 4841135, 9682270, 19364540]

約数ペア:

[(1, 19364540), (2, 9682270), (4, 4841135), (5, 3872908), (10, 1936454), (13, 1489580), (20, 968227), (26, 744790), (52, 372395), (65, 297916), (71, 272740), (130, 148958), (142, 136370), (260, 74479), (284, 68185), (355, 54548), (710, 27274), (923, 20980), (1049, 18460), (1420, 13637), (1846, 10490), (2098, 9230), (3692, 5245), (4196, 4615)]