255809015

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{67}}^1\times {\mathrm{211}}^1$

素因数の和:348

約数の個数: 64

約数和(自身を含む): 398573568

約数和(自身を除く): 142764553

約数列:

[1, 5, 7, 11, 35, 47, 55, 67, 77, 211, 235, 329, 335, 385, 469, 517, 737, 1055, 1477, 1645, 2321, 2345, 2585, 3149, 3619, 3685, 5159, 7385, 9917, 11605, 14137, 15745, 16247, 18095, 22043, 25795, 34639, 49585, 69419, 70685, 81235, 98959, 109087, 110215, 155507, 173195, 242473, 347095, 494795, 545435, 664439, 763609, 777535, 1088549, 1212365, 3322195, 3818045, 4651073, 5442745, 7308829, 23255365, 36544145, 51161803, 255809015]

約数ペア:

[(1, 255809015), (5, 51161803), (7, 36544145), (11, 23255365), (35, 7308829), (47, 5442745), (55, 4651073), (67, 3818045), (77, 3322195), (211, 1212365), (235, 1088549), (329, 777535), (335, 763609), (385, 664439), (469, 545435), (517, 494795), (737, 347095), (1055, 242473), (1477, 173195), (1645, 155507), (2321, 110215), (2345, 109087), (2585, 98959), (3149, 81235), (3619, 70685), (3685, 69419), (5159, 49585), (7385, 34639), (9917, 25795), (11605, 22043), (14137, 18095), (15745, 16247)]