20649970

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{347}}^1\times {\mathrm{541}}^1$

素因数の和:906

約数の個数: 32

約数和(自身を含む): 40741056

約数和(自身を除く): 20091086

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 347, 541, 694, 1082, 1735, 2705, 3470, 3817, 5410, 5951, 7634, 11902, 19085, 29755, 38170, 59510, 187727, 375454, 938635, 1877270, 2064997, 4129994, 10324985, 20649970]

約数ペア:

[(1, 20649970), (2, 10324985), (5, 4129994), (10, 2064997), (11, 1877270), (22, 938635), (55, 375454), (110, 187727), (347, 59510), (541, 38170), (694, 29755), (1082, 19085), (1735, 11902), (2705, 7634), (3470, 5951), (3817, 5410)]