20575575

素因数分解:

$3^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{4813}}^1$

素因数の和:4848

約数の個数: 36

約数和(自身を含む): 38800840

約数和(自身を除く): 18225265

約数列:

[1, 3, 5, 9, 15, 19, 25, 45, 57, 75, 95, 171, 225, 285, 475, 855, 1425, 4275, 4813, 14439, 24065, 43317, 72195, 91447, 120325, 216585, 274341, 360975, 457235, 823023, 1082925, 1371705, 2286175, 4115115, 6858525, 20575575]

約数ペア:

[(1, 20575575), (3, 6858525), (5, 4115115), (9, 2286175), (15, 1371705), (19, 1082925), (25, 823023), (45, 457235), (57, 360975), (75, 274341), (95, 216585), (171, 120325), (225, 91447), (285, 72195), (475, 43317), (855, 24065), (1425, 14439), (4275, 4813)]