28686736

素因数分解:

$2^4\times {\mathrm{13}}^2\times {\mathrm{103}}^2$

素因数の和:240

約数の個数: 45

約数和(自身を含む): 60774849

約数和(自身を除く): 32088113

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 103, 104, 169, 206, 208, 338, 412, 676, 824, 1339, 1352, 1648, 2678, 2704, 5356, 10609, 10712, 17407, 21218, 21424, 34814, 42436, 69628, 84872, 137917, 139256, 169744, 275834, 278512, 551668, 1103336, 1792921, 2206672, 3585842, 7171684, 14343368, 28686736]

約数ペア:

[(1, 28686736), (2, 14343368), (4, 7171684), (8, 3585842), (13, 2206672), (16, 1792921), (26, 1103336), (52, 551668), (103, 278512), (104, 275834), (169, 169744), (206, 139256), (208, 137917), (338, 84872), (412, 69628), (676, 42436), (824, 34814), (1339, 21424), (1352, 21218), (1648, 17407), (2678, 10712), (2704, 10609)]