123784040

素因数分解:

$2^3\times 5^1\times {\mathrm{647}}^1\times {\mathrm{4783}}^1$

素因数の和:5441

約数の個数: 32

約数和(自身を含む): 279002880

約数和(自身を除く): 155218840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 647, 1294, 2588, 3235, 4783, 5176, 6470, 9566, 12940, 19132, 23915, 25880, 38264, 47830, 95660, 191320, 3094601, 6189202, 12378404, 15473005, 24756808, 30946010, 61892020, 123784040]

約数ペア:

[(1, 123784040), (2, 61892020), (4, 30946010), (5, 24756808), (8, 15473005), (10, 12378404), (20, 6189202), (40, 3094601), (647, 191320), (1294, 95660), (2588, 47830), (3235, 38264), (4783, 25880), (5176, 23915), (6470, 19132), (9566, 12940)]