81774328

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{239}}^1\times {\mathrm{2251}}^1$

素因数の和:2515

約数の個数: 32

約数和(自身を含む): 162144000

約数和(自身を除く): 80369672

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 239, 478, 956, 1912, 2251, 4502, 4541, 9004, 9082, 18008, 18164, 36328, 42769, 85538, 171076, 342152, 537989, 1075978, 2151956, 4303912, 10221791, 20443582, 40887164, 81774328]

約数ペア:

[(1, 81774328), (2, 40887164), (4, 20443582), (8, 10221791), (19, 4303912), (38, 2151956), (76, 1075978), (152, 537989), (239, 342152), (478, 171076), (956, 85538), (1912, 42769), (2251, 36328), (4502, 18164), (4541, 18008), (9004, 9082)]