20330475

素因数分解:

$3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{1297}}^1$

素因数の和:1340

約数の個数: 48

約数和(自身を含む): 38628480

約数和(自身を除く): 18298005

約数列:

[1, 3, 5, 11, 15, 19, 25, 33, 55, 57, 75, 95, 165, 209, 275, 285, 475, 627, 825, 1045, 1297, 1425, 3135, 3891, 5225, 6485, 14267, 15675, 19455, 24643, 32425, 42801, 71335, 73929, 97275, 123215, 214005, 271073, 356675, 369645, 616075, 813219, 1070025, 1355365, 1848225, 4066095, 6776825, 20330475]

約数ペア:

[(1, 20330475), (3, 6776825), (5, 4066095), (11, 1848225), (15, 1355365), (19, 1070025), (25, 813219), (33, 616075), (55, 369645), (57, 356675), (75, 271073), (95, 214005), (165, 123215), (209, 97275), (275, 73929), (285, 71335), (475, 42801), (627, 32425), (825, 24643), (1045, 19455), (1297, 15675), (1425, 14267), (3135, 6485), (3891, 5225)]