556551220

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{678721}}^1$

素因数の和:678771

約数の個数: 24

約数和(自身を含む): 1197265608

約数和(自身を除く): 640714388

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 678721, 1357442, 2714884, 3393605, 6787210, 13574420, 27827561, 55655122, 111310244, 139137805, 278275610, 556551220]

約数ペア:

[(1, 556551220), (2, 278275610), (4, 139137805), (5, 111310244), (10, 55655122), (20, 27827561), (41, 13574420), (82, 6787210), (164, 3393605), (205, 2714884), (410, 1357442), (820, 678721)]