261661696

素因数分解:

$2^{10}\times {\mathrm{59}}^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1$

素因数の和:211

約数の個数: 88

約数和(自身を含む): 548268480

約数和(自身を除く): 286606784

約数列:

[1, 2, 4, 8, 16, 32, 59, 61, 64, 71, 118, 122, 128, 142, 236, 244, 256, 284, 472, 488, 512, 568, 944, 976, 1024, 1136, 1888, 1952, 2272, 3599, 3776, 3904, 4189, 4331, 4544, 7198, 7552, 7808, 8378, 8662, 9088, 14396, 15104, 15616, 16756, 17324, 18176, 28792, 30208, 31232, 33512, 34648, 36352, 57584, 60416, 62464, 67024, 69296, 72704, 115168, 134048, 138592, 230336, 255529, 268096, 277184, 460672, 511058, 536192, 554368, 921344, 1022116, 1072384, 1108736, 1842688, 2044232, 2144768, 2217472, 3685376, 4088464, 4289536, 4434944, 8176928, 16353856, 32707712, 65415424, 130830848, 261661696]

約数ペア:

[(1, 261661696), (2, 130830848), (4, 65415424), (8, 32707712), (16, 16353856), (32, 8176928), (59, 4434944), (61, 4289536), (64, 4088464), (71, 3685376), (118, 2217472), (122, 2144768), (128, 2044232), (142, 1842688), (236, 1108736), (244, 1072384), (256, 1022116), (284, 921344), (472, 554368), (488, 536192), (512, 511058), (568, 460672), (944, 277184), (976, 268096), (1024, 255529), (1136, 230336), (1888, 138592), (1952, 134048), (2272, 115168), (3599, 72704), (3776, 69296), (3904, 67024), (4189, 62464), (4331, 60416), (4544, 57584), (7198, 36352), (7552, 34648), (7808, 33512), (8378, 31232), (8662, 30208), (9088, 28792), (14396, 18176), (15104, 17324), (15616, 16756)]