198480280

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{45523}}^1$

素因数の和:45643

約数の個数: 32

約数和(自身を含む): 450687600

約数和(自身を除く): 252207320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 436, 545, 872, 1090, 2180, 4360, 45523, 91046, 182092, 227615, 364184, 455230, 910460, 1820920, 4962007, 9924014, 19848028, 24810035, 39696056, 49620070, 99240140, 198480280]

約数ペア:

[(1, 198480280), (2, 99240140), (4, 49620070), (5, 39696056), (8, 24810035), (10, 19848028), (20, 9924014), (40, 4962007), (109, 1820920), (218, 910460), (436, 455230), (545, 364184), (872, 227615), (1090, 182092), (2180, 91046), (4360, 45523)]