1278362020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{4916777}}^1$

素因数の和:4916799

約数の個数: 24

約数和(自身を含む): 2891065464

約数和(自身を除く): 1612703444

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 4916777, 9833554, 19667108, 24583885, 49167770, 63918101, 98335540, 127836202, 255672404, 319590505, 639181010, 1278362020]

約数ペア:

[(1, 1278362020), (2, 639181010), (4, 319590505), (5, 255672404), (10, 127836202), (13, 98335540), (20, 63918101), (26, 49167770), (52, 24583885), (65, 19667108), (130, 9833554), (260, 4916777)]