19682840

素因数分解:

$2^3\times 5^1\times {\mathrm{179}}^1\times {\mathrm{2749}}^1$

素因数の和:2939

約数の個数: 32

約数和(自身を含む): 44550000

約数和(自身を除く): 24867160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 179, 358, 716, 895, 1432, 1790, 2749, 3580, 5498, 7160, 10996, 13745, 21992, 27490, 54980, 109960, 492071, 984142, 1968284, 2460355, 3936568, 4920710, 9841420, 19682840]

約数ペア:

[(1, 19682840), (2, 9841420), (4, 4920710), (5, 3936568), (8, 2460355), (10, 1968284), (20, 984142), (40, 492071), (179, 109960), (358, 54980), (716, 27490), (895, 21992), (1432, 13745), (1790, 10996), (2749, 7160), (3580, 5498)]