388225420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{1764661}}^1$

素因数の和:1764681

約数の個数: 24

約数和(自身を含む): 889389648

約数和(自身を除く): 501164228

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 1764661, 3529322, 7058644, 8823305, 17646610, 19411271, 35293220, 38822542, 77645084, 97056355, 194112710, 388225420]

約数ペア:

[(1, 388225420), (2, 194112710), (4, 97056355), (5, 77645084), (10, 38822542), (11, 35293220), (20, 19411271), (22, 17646610), (44, 8823305), (55, 7058644), (110, 3529322), (220, 1764661)]