78211328

素因数分解:

$2^8\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{331}}^1$

素因数の和:431

約数の個数: 72

約数和(自身を含む): 171009216

約数和(自身を除く): 92797888

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 71, 104, 128, 142, 208, 256, 284, 331, 416, 568, 662, 832, 923, 1136, 1324, 1664, 1846, 2272, 2648, 3328, 3692, 4303, 4544, 5296, 7384, 8606, 9088, 10592, 14768, 17212, 18176, 21184, 23501, 29536, 34424, 42368, 47002, 59072, 68848, 84736, 94004, 118144, 137696, 188008, 236288, 275392, 305513, 376016, 550784, 611026, 752032, 1101568, 1222052, 1504064, 2444104, 3008128, 4888208, 6016256, 9776416, 19552832, 39105664, 78211328]

約数ペア:

[(1, 78211328), (2, 39105664), (4, 19552832), (8, 9776416), (13, 6016256), (16, 4888208), (26, 3008128), (32, 2444104), (52, 1504064), (64, 1222052), (71, 1101568), (104, 752032), (128, 611026), (142, 550784), (208, 376016), (256, 305513), (284, 275392), (331, 236288), (416, 188008), (568, 137696), (662, 118144), (832, 94004), (923, 84736), (1136, 68848), (1324, 59072), (1664, 47002), (1846, 42368), (2272, 34424), (2648, 29536), (3328, 23501), (3692, 21184), (4303, 18176), (4544, 17212), (5296, 14768), (7384, 10592), (8606, 9088)]