805420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{523}}^1$

素因数の和:550

約数の個数: 48

約数和(自身を含む): 2112768

約数和(自身を除く): 1307348

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 523, 770, 1046, 1540, 2092, 2615, 3661, 5230, 5753, 7322, 10460, 11506, 14644, 18305, 23012, 28765, 36610, 40271, 57530, 73220, 80542, 115060, 161084, 201355, 402710, 805420]

約数ペア:

[(1, 805420), (2, 402710), (4, 201355), (5, 161084), (7, 115060), (10, 80542), (11, 73220), (14, 57530), (20, 40271), (22, 36610), (28, 28765), (35, 23012), (44, 18305), (55, 14644), (70, 11506), (77, 10460), (110, 7322), (140, 5753), (154, 5230), (220, 3661), (308, 2615), (385, 2092), (523, 1540), (770, 1046)]