2019905810

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{179}}^1\times {\mathrm{1423}}^1$

素因数の和:1683

約数の個数: 64

約数和(自身を含む): 4004743680

約数和(自身を除く): 1984837870

約数列:

[1, 2, 5, 10, 13, 26, 61, 65, 122, 130, 179, 305, 358, 610, 793, 895, 1423, 1586, 1790, 2327, 2846, 3965, 4654, 7115, 7930, 10919, 11635, 14230, 18499, 21838, 23270, 36998, 54595, 86803, 92495, 109190, 141947, 173606, 184990, 254717, 283894, 434015, 509434, 709735, 868030, 1128439, 1273585, 1419470, 2256878, 2547170, 3311321, 5642195, 6622642, 11284390, 15537737, 16556605, 31075474, 33113210, 77688685, 155377370, 201990581, 403981162, 1009952905, 2019905810]

約数ペア:

[(1, 2019905810), (2, 1009952905), (5, 403981162), (10, 201990581), (13, 155377370), (26, 77688685), (61, 33113210), (65, 31075474), (122, 16556605), (130, 15537737), (179, 11284390), (305, 6622642), (358, 5642195), (610, 3311321), (793, 2547170), (895, 2256878), (1423, 1419470), (1586, 1273585), (1790, 1128439), (2327, 868030), (2846, 709735), (3965, 509434), (4654, 434015), (7115, 283894), (7930, 254717), (10919, 184990), (11635, 173606), (14230, 141947), (18499, 109190), (21838, 92495), (23270, 86803), (36998, 54595)]