15640456

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{1489}}^1$

素因数の和:1609

約数の個数: 32

約数和(自身を含む): 31915800

約数和(自身を除く): 16275344

約数列:

[1, 2, 4, 8, 13, 26, 52, 101, 104, 202, 404, 808, 1313, 1489, 2626, 2978, 5252, 5956, 10504, 11912, 19357, 38714, 77428, 150389, 154856, 300778, 601556, 1203112, 1955057, 3910114, 7820228, 15640456]

約数ペア:

[(1, 15640456), (2, 7820228), (4, 3910114), (8, 1955057), (13, 1203112), (26, 601556), (52, 300778), (101, 154856), (104, 150389), (202, 77428), (404, 38714), (808, 19357), (1313, 11912), (1489, 10504), (2626, 5956), (2978, 5252)]