65139520

素因数分解:

$2^6\times 5^1\times {\mathrm{251}}^1\times {\mathrm{811}}^1$

素因数の和:1079

約数の個数: 56

約数和(自身を含む): 155923488

約数和(自身を除く): 90783968

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 251, 320, 502, 811, 1004, 1255, 1622, 2008, 2510, 3244, 4016, 4055, 5020, 6488, 8032, 8110, 10040, 12976, 16064, 16220, 20080, 25952, 32440, 40160, 51904, 64880, 80320, 129760, 203561, 259520, 407122, 814244, 1017805, 1628488, 2035610, 3256976, 4071220, 6513952, 8142440, 13027904, 16284880, 32569760, 65139520]

約数ペア:

[(1, 65139520), (2, 32569760), (4, 16284880), (5, 13027904), (8, 8142440), (10, 6513952), (16, 4071220), (20, 3256976), (32, 2035610), (40, 1628488), (64, 1017805), (80, 814244), (160, 407122), (251, 259520), (320, 203561), (502, 129760), (811, 80320), (1004, 64880), (1255, 51904), (1622, 40160), (2008, 32440), (2510, 25952), (3244, 20080), (4016, 16220), (4055, 16064), (5020, 12976), (6488, 10040), (8032, 8110)]