20532875

素因数分解:

$5^3\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{137}}^1$

素因数の和:272

約数の個数: 32

約数和(自身を含む): 28416960

約数和(自身を除く): 7884085

約数列:

[1, 5, 11, 25, 55, 109, 125, 137, 275, 545, 685, 1199, 1375, 1507, 2725, 3425, 5995, 7535, 13625, 14933, 17125, 29975, 37675, 74665, 149875, 164263, 188375, 373325, 821315, 1866625, 4106575, 20532875]

約数ペア:

[(1, 20532875), (5, 4106575), (11, 1866625), (25, 821315), (55, 373325), (109, 188375), (125, 164263), (137, 149875), (275, 74665), (545, 37675), (685, 29975), (1199, 17125), (1375, 14933), (1507, 13625), (2725, 7535), (3425, 5995)]