20353025

素因数分解:

$5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{109}}^1$

素因数の和:234

約数の個数: 48

約数和(自身を含む): 32081280

約数和(自身を除く): 11728255

約数列:

[1, 5, 7, 11, 25, 35, 55, 77, 97, 109, 175, 275, 385, 485, 545, 679, 763, 1067, 1199, 1925, 2425, 2725, 3395, 3815, 5335, 5995, 7469, 8393, 10573, 16975, 19075, 26675, 29975, 37345, 41965, 52865, 74011, 116303, 186725, 209825, 264325, 370055, 581515, 814121, 1850275, 2907575, 4070605, 20353025]

約数ペア:

[(1, 20353025), (5, 4070605), (7, 2907575), (11, 1850275), (25, 814121), (35, 581515), (55, 370055), (77, 264325), (97, 209825), (109, 186725), (175, 116303), (275, 74011), (385, 52865), (485, 41965), (545, 37345), (679, 29975), (763, 26675), (1067, 19075), (1199, 16975), (1925, 10573), (2425, 8393), (2725, 7469), (3395, 5995), (3815, 5335)]