1720220560

素因数分解:

$2^4\times 5^1\times {\mathrm{109}}^1\times {\mathrm{197273}}^1$

素因数の和:197395

約数の個数: 40

約数和(自身を含む): 4036226040

約数和(自身を除く): 2316005480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 109, 218, 436, 545, 872, 1090, 1744, 2180, 4360, 8720, 197273, 394546, 789092, 986365, 1578184, 1972730, 3156368, 3945460, 7890920, 15781840, 21502757, 43005514, 86011028, 107513785, 172022056, 215027570, 344044112, 430055140, 860110280, 1720220560]

約数ペア:

[(1, 1720220560), (2, 860110280), (4, 430055140), (5, 344044112), (8, 215027570), (10, 172022056), (16, 107513785), (20, 86011028), (40, 43005514), (80, 21502757), (109, 15781840), (218, 7890920), (436, 3945460), (545, 3156368), (872, 1972730), (1090, 1578184), (1744, 986365), (2180, 789092), (4360, 394546), (8720, 197273)]