20187785540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{77645329}}^1$

素因数の和:77645351

約数の個数: 24

約数和(自身を含む): 45655454040

約数和(自身を除く): 25467668500

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 77645329, 155290658, 310581316, 388226645, 776453290, 1009389277, 1552906580, 2018778554, 4037557108, 5046946385, 10093892770, 20187785540]

約数ペア:

[(1, 20187785540), (2, 10093892770), (4, 5046946385), (5, 4037557108), (10, 2018778554), (13, 1552906580), (20, 1009389277), (26, 776453290), (52, 388226645), (65, 310581316), (130, 155290658), (260, 77645329)]