20409168

素因数分解:

$2^4\times 3^1\times {\mathrm{13}}^1\times {\mathrm{32707}}^1$

素因数の和:32731

約数の個数: 40

約数和(自身を含む): 56781088

約数和(自身を除く): 36371920

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 39, 48, 52, 78, 104, 156, 208, 312, 624, 32707, 65414, 98121, 130828, 196242, 261656, 392484, 425191, 523312, 784968, 850382, 1275573, 1569936, 1700764, 2551146, 3401528, 5102292, 6803056, 10204584, 20409168]

約数ペア:

[(1, 20409168), (2, 10204584), (3, 6803056), (4, 5102292), (6, 3401528), (8, 2551146), (12, 1700764), (13, 1569936), (16, 1275573), (24, 850382), (26, 784968), (39, 523312), (48, 425191), (52, 392484), (78, 261656), (104, 196242), (156, 130828), (208, 98121), (312, 65414), (624, 32707)]