72684820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{279557}}^1$

素因数の和:279579

約数の個数: 24

約数和(自身を含む): 164380104

約数和(自身を除く): 91695284

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 279557, 559114, 1118228, 1397785, 2795570, 3634241, 5591140, 7268482, 14536964, 18171205, 36342410, 72684820]

約数ペア:

[(1, 72684820), (2, 36342410), (4, 18171205), (5, 14536964), (10, 7268482), (13, 5591140), (20, 3634241), (26, 2795570), (52, 1397785), (65, 1118228), (130, 559114), (260, 279557)]