20194497544

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{397}}^1\times {\mathrm{489113}}^1$

素因数の和:489529

約数の個数: 32

約数和(自身を含む): 40880148120

約数和(自身を除く): 20685650576

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 397, 794, 1588, 3176, 5161, 10322, 20644, 41288, 489113, 978226, 1956452, 3912904, 6358469, 12716938, 25433876, 50867752, 194177861, 388355722, 776711444, 1553422888, 2524312193, 5048624386, 10097248772, 20194497544]

約数ペア:

[(1, 20194497544), (2, 10097248772), (4, 5048624386), (8, 2524312193), (13, 1553422888), (26, 776711444), (52, 388355722), (104, 194177861), (397, 50867752), (794, 25433876), (1588, 12716938), (3176, 6358469), (5161, 3912904), (10322, 1956452), (20644, 978226), (41288, 489113)]