131151280

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{126107}}^1$

素因数の和:126133

約数の個数: 40

約数和(自身を含む): 328385232

約数和(自身を除く): 197233952

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 126107, 252214, 504428, 630535, 1008856, 1261070, 1639391, 2017712, 2522140, 3278782, 5044280, 6557564, 8196955, 10088560, 13115128, 16393910, 26230256, 32787820, 65575640, 131151280]

約数ペア:

[(1, 131151280), (2, 65575640), (4, 32787820), (5, 26230256), (8, 16393910), (10, 13115128), (13, 10088560), (16, 8196955), (20, 6557564), (26, 5044280), (40, 3278782), (52, 2522140), (65, 2017712), (80, 1639391), (104, 1261070), (130, 1008856), (208, 630535), (260, 504428), (520, 252214), (1040, 126107)]