204080509412

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{71}}^2\times {\mathrm{778541}}^1$

素因数の和:778700

約数の個数: 36

約数和(自身を含む): 390107154108

約数和(自身を除く): 186026644696

約数列:

[1, 2, 4, 13, 26, 52, 71, 142, 284, 923, 1846, 3692, 5041, 10082, 20164, 65533, 131066, 262132, 778541, 1557082, 3114164, 10121033, 20242066, 40484132, 55276411, 110552822, 221105644, 718593343, 1437186686, 2874373372, 3924625181, 7849250362, 15698500724, 51020127353, 102040254706, 204080509412]

約数ペア:

[(1, 204080509412), (2, 102040254706), (4, 51020127353), (13, 15698500724), (26, 7849250362), (52, 3924625181), (71, 2874373372), (142, 1437186686), (284, 718593343), (923, 221105644), (1846, 110552822), (3692, 55276411), (5041, 40484132), (10082, 20242066), (20164, 10121033), (65533, 3114164), (131066, 1557082), (262132, 778541)]