1890641090

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{809}}^1\times {\mathrm{17977}}^1$

素因数の和:18806

約数の個数: 32

約数和(自身を含む): 3669669360

約数和(自身を除く): 1779028270

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 809, 1618, 4045, 8090, 10517, 17977, 21034, 35954, 52585, 89885, 105170, 179770, 233701, 467402, 1168505, 2337010, 14543393, 29086786, 72716965, 145433930, 189064109, 378128218, 945320545, 1890641090]

約数ペア:

[(1, 1890641090), (2, 945320545), (5, 378128218), (10, 189064109), (13, 145433930), (26, 72716965), (65, 29086786), (130, 14543393), (809, 2337010), (1618, 1168505), (4045, 467402), (8090, 233701), (10517, 179770), (17977, 105170), (21034, 89885), (35954, 52585)]