219045640

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{497831}}^1$

素因数の和:497853

約数の個数: 32

約数和(自身を含む): 537658560

約数和(自身を除く): 318612920

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 497831, 995662, 1991324, 2489155, 3982648, 4978310, 5476141, 9956620, 10952282, 19913240, 21904564, 27380705, 43809128, 54761410, 109522820, 219045640]

約数ペア:

[(1, 219045640), (2, 109522820), (4, 54761410), (5, 43809128), (8, 27380705), (10, 21904564), (11, 19913240), (20, 10952282), (22, 9956620), (40, 5476141), (44, 4978310), (55, 3982648), (88, 2489155), (110, 1991324), (220, 995662), (440, 497831)]