20804915912

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{439}}^1\times {\mathrm{4111}}^1$

素因数の和:4698

約数の個数: 64

約数和(自身を含む): 42988492800

約数和(自身を除く): 22183576888

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 131, 262, 439, 524, 878, 1048, 1441, 1756, 2882, 3512, 4111, 4829, 5764, 8222, 9658, 11528, 16444, 19316, 32888, 38632, 45221, 57509, 90442, 115018, 180884, 230036, 361768, 460072, 538541, 632599, 1077082, 1265198, 1804729, 2154164, 2530396, 3609458, 4308328, 5060792, 5923951, 7218916, 11847902, 14437832, 19852019, 23695804, 39704038, 47391608, 79408076, 158816152, 236419499, 472838998, 945677996, 1891355992, 2600614489, 5201228978, 10402457956, 20804915912]

約数ペア:

[(1, 20804915912), (2, 10402457956), (4, 5201228978), (8, 2600614489), (11, 1891355992), (22, 945677996), (44, 472838998), (88, 236419499), (131, 158816152), (262, 79408076), (439, 47391608), (524, 39704038), (878, 23695804), (1048, 19852019), (1441, 14437832), (1756, 11847902), (2882, 7218916), (3512, 5923951), (4111, 5060792), (4829, 4308328), (5764, 3609458), (8222, 2530396), (9658, 2154164), (11528, 1804729), (16444, 1265198), (19316, 1077082), (32888, 632599), (38632, 538541), (45221, 460072), (57509, 361768), (90442, 230036), (115018, 180884)]