28920170032

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{139039279}}^1$

素因数の和:139039300

約数の個数: 20

約数和(自身を含む): 60343047520

約数和(自身を除く): 31422877488

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 139039279, 278078558, 556157116, 1112314232, 1807510627, 2224628464, 3615021254, 7230042508, 14460085016, 28920170032]

約数ペア:

[(1, 28920170032), (2, 14460085016), (4, 7230042508), (8, 3615021254), (13, 2224628464), (16, 1807510627), (26, 1112314232), (52, 556157116), (104, 278078558), (208, 139039279)]