256651008

素因数分解:

$2^8\times 3^1\times {\mathrm{131}}^1\times {\mathrm{2551}}^1$

素因数の和:2701

約数の個数: 72

約数和(自身を含む): 688550016

約数和(自身を除く): 431899008

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 64, 96, 128, 131, 192, 256, 262, 384, 393, 524, 768, 786, 1048, 1572, 2096, 2551, 3144, 4192, 5102, 6288, 7653, 8384, 10204, 12576, 15306, 16768, 20408, 25152, 30612, 33536, 40816, 50304, 61224, 81632, 100608, 122448, 163264, 244896, 326528, 334181, 489792, 653056, 668362, 979584, 1002543, 1336724, 1959168, 2005086, 2673448, 4010172, 5346896, 8020344, 10693792, 16040688, 21387584, 32081376, 42775168, 64162752, 85550336, 128325504, 256651008]

約数ペア:

[(1, 256651008), (2, 128325504), (3, 85550336), (4, 64162752), (6, 42775168), (8, 32081376), (12, 21387584), (16, 16040688), (24, 10693792), (32, 8020344), (48, 5346896), (64, 4010172), (96, 2673448), (128, 2005086), (131, 1959168), (192, 1336724), (256, 1002543), (262, 979584), (384, 668362), (393, 653056), (524, 489792), (768, 334181), (786, 326528), (1048, 244896), (1572, 163264), (2096, 122448), (2551, 100608), (3144, 81632), (4192, 61224), (5102, 50304), (6288, 40816), (7653, 33536), (8384, 30612), (10204, 25152), (12576, 20408), (15306, 16768)]