28744820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{110557}}^1$

素因数の和:110579

約数の個数: 24

約数和(自身を含む): 65008104

約数和(自身を除く): 36263284

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 110557, 221114, 442228, 552785, 1105570, 1437241, 2211140, 2874482, 5748964, 7186205, 14372410, 28744820]

約数ペア:

[(1, 28744820), (2, 14372410), (4, 7186205), (5, 5748964), (10, 2874482), (13, 2211140), (20, 1437241), (26, 1105570), (52, 552785), (65, 442228), (130, 221114), (260, 110557)]