64261940

素因数分解:

$2^2\times 5^1\times {\mathrm{911}}^1\times {\mathrm{3527}}^1$

素因数の和:4447

約数の個数: 24

約数和(自身を含む): 135136512

約数和(自身を除く): 70874572

約数列:

[1, 2, 4, 5, 10, 20, 911, 1822, 3527, 3644, 4555, 7054, 9110, 14108, 17635, 18220, 35270, 70540, 3213097, 6426194, 12852388, 16065485, 32130970, 64261940]

約数ペア:

[(1, 64261940), (2, 32130970), (4, 16065485), (5, 12852388), (10, 6426194), (20, 3213097), (911, 70540), (1822, 35270), (3527, 18220), (3644, 17635), (4555, 14108), (7054, 9110)]