20470175

素因数分解:

$5^2\times {\mathrm{11}}^2\times {\mathrm{67}}^1\times {\mathrm{101}}^1$

素因数の和:200

約数の個数: 36

約数和(自身を含む): 28597128

約数和(自身を除く): 8126953

約数列:

[1, 5, 11, 25, 55, 67, 101, 121, 275, 335, 505, 605, 737, 1111, 1675, 2525, 3025, 3685, 5555, 6767, 8107, 12221, 18425, 27775, 33835, 40535, 61105, 74437, 169175, 202675, 305525, 372185, 818807, 1860925, 4094035, 20470175]

約数ペア:

[(1, 20470175), (5, 4094035), (11, 1860925), (25, 818807), (55, 372185), (67, 305525), (101, 202675), (121, 169175), (275, 74437), (335, 61105), (505, 40535), (605, 33835), (737, 27775), (1111, 18425), (1675, 12221), (2525, 8107), (3025, 6767), (3685, 5555)]