278272940

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{1264877}}^1$

素因数の和:1264897

約数の個数: 24

約数和(自身を含む): 637498512

約数和(自身を除く): 359225572

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 1264877, 2529754, 5059508, 6324385, 12648770, 13913647, 25297540, 27827294, 55654588, 69568235, 139136470, 278272940]

約数ペア:

[(1, 278272940), (2, 139136470), (4, 69568235), (5, 55654588), (10, 27827294), (11, 25297540), (20, 13913647), (22, 12648770), (44, 6324385), (55, 5059508), (110, 2529754), (220, 1264877)]