19797440

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{4759}}^1$

素因数の和:4789

約数の個数: 56

約数和(自身を含む): 50779680

約数和(自身を除く): 30982240

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 130, 160, 208, 260, 320, 416, 520, 832, 1040, 2080, 4160, 4759, 9518, 19036, 23795, 38072, 47590, 61867, 76144, 95180, 123734, 152288, 190360, 247468, 304576, 309335, 380720, 494936, 618670, 761440, 989872, 1237340, 1522880, 1979744, 2474680, 3959488, 4949360, 9898720, 19797440]

約数ペア:

[(1, 19797440), (2, 9898720), (4, 4949360), (5, 3959488), (8, 2474680), (10, 1979744), (13, 1522880), (16, 1237340), (20, 989872), (26, 761440), (32, 618670), (40, 494936), (52, 380720), (64, 309335), (65, 304576), (80, 247468), (104, 190360), (130, 152288), (160, 123734), (208, 95180), (260, 76144), (320, 61867), (416, 47590), (520, 38072), (832, 23795), (1040, 19036), (2080, 9518), (4160, 4759)]