19504480

素因数分解:

$2^5\times 5^1\times {\mathrm{139}}^1\times {\mathrm{877}}^1$

素因数の和:1031

約数の個数: 48

約数和(自身を含む): 46463760

約数和(自身を除く): 26959280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 139, 160, 278, 556, 695, 877, 1112, 1390, 1754, 2224, 2780, 3508, 4385, 4448, 5560, 7016, 8770, 11120, 14032, 17540, 22240, 28064, 35080, 70160, 121903, 140320, 243806, 487612, 609515, 975224, 1219030, 1950448, 2438060, 3900896, 4876120, 9752240, 19504480]

約数ペア:

[(1, 19504480), (2, 9752240), (4, 4876120), (5, 3900896), (8, 2438060), (10, 1950448), (16, 1219030), (20, 975224), (32, 609515), (40, 487612), (80, 243806), (139, 140320), (160, 121903), (278, 70160), (556, 35080), (695, 28064), (877, 22240), (1112, 17540), (1390, 14032), (1754, 11120), (2224, 8770), (2780, 7016), (3508, 5560), (4385, 4448)]