19956970

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{419}}^1\times {\mathrm{433}}^1$

素因数の和:870

約数の個数: 32

約数和(自身を含む): 39372480

約数和(自身を除く): 19415510

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 419, 433, 838, 866, 2095, 2165, 4190, 4330, 4609, 4763, 9218, 9526, 23045, 23815, 46090, 47630, 181427, 362854, 907135, 1814270, 1995697, 3991394, 9978485, 19956970]

約数ペア:

[(1, 19956970), (2, 9978485), (5, 3991394), (10, 1995697), (11, 1814270), (22, 907135), (55, 362854), (110, 181427), (419, 47630), (433, 46090), (838, 23815), (866, 23045), (2095, 9526), (2165, 9218), (4190, 4763), (4330, 4609)]