20804915944

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{16963}}^1\times {\mathrm{8069}}^1$

素因数の和:25057

約数の個数: 32

約数和(自身を含む): 41069844000

約数和(自身を除く): 20264928056

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 8069, 16138, 16963, 32276, 33926, 64552, 67852, 135704, 153311, 306622, 322297, 613244, 644594, 1226488, 1289188, 2578376, 136874447, 273748894, 547497788, 1094995576, 2600614493, 5201228986, 10402457972, 20804915944]

約数ペア:

[(1, 20804915944), (2, 10402457972), (4, 5201228986), (8, 2600614493), (19, 1094995576), (38, 547497788), (76, 273748894), (152, 136874447), (8069, 2578376), (16138, 1289188), (16963, 1226488), (32276, 644594), (33926, 613244), (64552, 322297), (67852, 306622), (135704, 153311)]