51448540

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17989}}^1$

素因数の和:18022

約数の個数: 48

約数和(自身を含む): 126937440

約数和(自身を除く): 75488900

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 26, 44, 52, 55, 65, 110, 130, 143, 220, 260, 286, 572, 715, 1430, 2860, 17989, 35978, 71956, 89945, 179890, 197879, 233857, 359780, 395758, 467714, 791516, 935428, 989395, 1169285, 1978790, 2338570, 2572427, 3957580, 4677140, 5144854, 10289708, 12862135, 25724270, 51448540]

約数ペア:

[(1, 51448540), (2, 25724270), (4, 12862135), (5, 10289708), (10, 5144854), (11, 4677140), (13, 3957580), (20, 2572427), (22, 2338570), (26, 1978790), (44, 1169285), (52, 989395), (55, 935428), (65, 791516), (110, 467714), (130, 395758), (143, 359780), (220, 233857), (260, 197879), (286, 179890), (572, 89945), (715, 71956), (1430, 35978), (2860, 17989)]