219953840

素因数分解:

$2^4\times 5^1\times {\mathrm{127}}^1\times {\mathrm{21649}}^1$

素因数の和:21789

約数の個数: 40

約数和(自身を含む): 515443200

約数和(自身を除く): 295489360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 127, 254, 508, 635, 1016, 1270, 2032, 2540, 5080, 10160, 21649, 43298, 86596, 108245, 173192, 216490, 346384, 432980, 865960, 1731920, 2749423, 5498846, 10997692, 13747115, 21995384, 27494230, 43990768, 54988460, 109976920, 219953840]

約数ペア:

[(1, 219953840), (2, 109976920), (4, 54988460), (5, 43990768), (8, 27494230), (10, 21995384), (16, 13747115), (20, 10997692), (40, 5498846), (80, 2749423), (127, 1731920), (254, 865960), (508, 432980), (635, 346384), (1016, 216490), (1270, 173192), (2032, 108245), (2540, 86596), (5080, 43298), (10160, 21649)]