261756160

素因数分解:

$2^8\times 5^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{229}}^1$

素因数の和:316

約数の個数: 144

約数和(自身を含む): 676972800

約数和(自身を除く): 415216640

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 47, 64, 76, 80, 94, 95, 128, 152, 160, 188, 190, 229, 235, 256, 304, 320, 376, 380, 458, 470, 608, 640, 752, 760, 893, 916, 940, 1145, 1216, 1280, 1504, 1520, 1786, 1832, 1880, 2290, 2432, 3008, 3040, 3572, 3664, 3760, 4351, 4465, 4580, 4864, 6016, 6080, 7144, 7328, 7520, 8702, 8930, 9160, 10763, 12032, 12160, 14288, 14656, 15040, 17404, 17860, 18320, 21526, 21755, 24320, 28576, 29312, 30080, 34808, 35720, 36640, 43052, 43510, 53815, 57152, 58624, 60160, 69616, 71440, 73280, 86104, 87020, 107630, 114304, 139232, 142880, 146560, 172208, 174040, 204497, 215260, 228608, 278464, 285760, 293120, 344416, 348080, 408994, 430520, 556928, 571520, 688832, 696160, 817988, 861040, 1022485, 1113856, 1143040, 1377664, 1392320, 1635976, 1722080, 2044970, 2755328, 2784640, 3271952, 3444160, 4089940, 5569280, 6543904, 6888320, 8179880, 13087808, 13776640, 16359760, 26175616, 32719520, 52351232, 65439040, 130878080, 261756160]

約数ペア:

[(1, 261756160), (2, 130878080), (4, 65439040), (5, 52351232), (8, 32719520), (10, 26175616), (16, 16359760), (19, 13776640), (20, 13087808), (32, 8179880), (38, 6888320), (40, 6543904), (47, 5569280), (64, 4089940), (76, 3444160), (80, 3271952), (94, 2784640), (95, 2755328), (128, 2044970), (152, 1722080), (160, 1635976), (188, 1392320), (190, 1377664), (229, 1143040), (235, 1113856), (256, 1022485), (304, 861040), (320, 817988), (376, 696160), (380, 688832), (458, 571520), (470, 556928), (608, 430520), (640, 408994), (752, 348080), (760, 344416), (893, 293120), (916, 285760), (940, 278464), (1145, 228608), (1216, 215260), (1280, 204497), (1504, 174040), (1520, 172208), (1786, 146560), (1832, 142880), (1880, 139232), (2290, 114304), (2432, 107630), (3008, 87020), (3040, 86104), (3572, 73280), (3664, 71440), (3760, 69616), (4351, 60160), (4465, 58624), (4580, 57152), (4864, 53815), (6016, 43510), (6080, 43052), (7144, 36640), (7328, 35720), (7520, 34808), (8702, 30080), (8930, 29312), (9160, 28576), (10763, 24320), (12032, 21755), (12160, 21526), (14288, 18320), (14656, 17860), (15040, 17404)]