128173375

素因数分解:

$5^3\times {\mathrm{11}}^1\times {\mathrm{31}}^2\times {\mathrm{97}}^1$

素因数の和:185

約数の個数: 48

約数和(自身を含む): 182171808

約数和(自身を除く): 53998433

約数列:

[1, 5, 11, 25, 31, 55, 97, 125, 155, 275, 341, 485, 775, 961, 1067, 1375, 1705, 2425, 3007, 3875, 4805, 5335, 8525, 10571, 12125, 15035, 24025, 26675, 33077, 42625, 52855, 75175, 93217, 120125, 133375, 165385, 264275, 375875, 466085, 826925, 1025387, 1321375, 2330425, 4134625, 5126935, 11652125, 25634675, 128173375]

約数ペア:

[(1, 128173375), (5, 25634675), (11, 11652125), (25, 5126935), (31, 4134625), (55, 2330425), (97, 1321375), (125, 1025387), (155, 826925), (275, 466085), (341, 375875), (485, 264275), (775, 165385), (961, 133375), (1067, 120125), (1375, 93217), (1705, 75175), (2425, 52855), (3007, 42625), (3875, 33077), (4805, 26675), (5335, 24025), (8525, 15035), (10571, 12125)]