278324420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{1265111}}^1$

素因数の和:1265131

約数の個数: 24

約数和(自身を含む): 637616448

約数和(自身を除く): 359292028

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 1265111, 2530222, 5060444, 6325555, 12651110, 13916221, 25302220, 27832442, 55664884, 69581105, 139162210, 278324420]

約数ペア:

[(1, 278324420), (2, 139162210), (4, 69581105), (5, 55664884), (10, 27832442), (11, 25302220), (20, 13916221), (22, 12651110), (44, 6325555), (55, 5060444), (110, 2530222), (220, 1265111)]