20199470

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{2593}}^1$

素因数の和:2660

約数の個数: 32

約数和(自身を含む): 39221280

約数和(自身を除く): 19021810

約数列:

[1, 2, 5, 10, 19, 38, 41, 82, 95, 190, 205, 410, 779, 1558, 2593, 3895, 5186, 7790, 12965, 25930, 49267, 98534, 106313, 212626, 246335, 492670, 531565, 1063130, 2019947, 4039894, 10099735, 20199470]

約数ペア:

[(1, 20199470), (2, 10099735), (5, 4039894), (10, 2019947), (19, 1063130), (38, 531565), (41, 492670), (82, 246335), (95, 212626), (190, 106313), (205, 98534), (410, 49267), (779, 25930), (1558, 12965), (2593, 7790), (3895, 5186)]