19494280

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37489}}^1$

素因数の和:37513

約数の個数: 32

約数和(自身を含む): 47237400

約数和(自身を除く): 27743120

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 37489, 74978, 149956, 187445, 299912, 374890, 487357, 749780, 974714, 1499560, 1949428, 2436785, 3898856, 4873570, 9747140, 19494280]

約数ペア:

[(1, 19494280), (2, 9747140), (4, 4873570), (5, 3898856), (8, 2436785), (10, 1949428), (13, 1499560), (20, 974714), (26, 749780), (40, 487357), (52, 374890), (65, 299912), (104, 187445), (130, 149956), (260, 74978), (520, 37489)]