20165677540

素因数分解:

$2^2\times 5^1\times {\mathrm{263}}^1\times {\mathrm{601}}^1\times {\mathrm{6379}}^1$

素因数の和:7252

約数の個数: 48

約数和(自身を含む): 42586346880

約数和(自身を除く): 22420669340

約数列:

[1, 2, 4, 5, 10, 20, 263, 526, 601, 1052, 1202, 1315, 2404, 2630, 3005, 5260, 6010, 6379, 12020, 12758, 25516, 31895, 63790, 127580, 158063, 316126, 632252, 790315, 1580630, 1677677, 3161260, 3355354, 3833779, 6710708, 7667558, 8388385, 15335116, 16776770, 19168895, 33553540, 38337790, 76675580, 1008283877, 2016567754, 4033135508, 5041419385, 10082838770, 20165677540]

約数ペア:

[(1, 20165677540), (2, 10082838770), (4, 5041419385), (5, 4033135508), (10, 2016567754), (20, 1008283877), (263, 76675580), (526, 38337790), (601, 33553540), (1052, 19168895), (1202, 16776770), (1315, 15335116), (2404, 8388385), (2630, 7667558), (3005, 6710708), (5260, 3833779), (6010, 3355354), (6379, 3161260), (12020, 1677677), (12758, 1580630), (25516, 790315), (31895, 632252), (63790, 316126), (127580, 158063)]