197173880

素因数分解:

$2^3\times 5^1\times {\mathrm{431}}^1\times {\mathrm{11437}}^1$

素因数の和:11879

約数の個数: 32

約数和(自身を含む): 444709440

約数和(自身を除く): 247535560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 431, 862, 1724, 2155, 3448, 4310, 8620, 11437, 17240, 22874, 45748, 57185, 91496, 114370, 228740, 457480, 4929347, 9858694, 19717388, 24646735, 39434776, 49293470, 98586940, 197173880]

約数ペア:

[(1, 197173880), (2, 98586940), (4, 49293470), (5, 39434776), (8, 24646735), (10, 19717388), (20, 9858694), (40, 4929347), (431, 457480), (862, 228740), (1724, 114370), (2155, 91496), (3448, 57185), (4310, 45748), (8620, 22874), (11437, 17240)]