15971800

素因数分解:

$2^3\times 5^2\times {\mathrm{13}}^1\times {\mathrm{6143}}^1$

素因数の和:6172

約数の個数: 48

約数和(自身を含む): 39997440

約数和(自身を除く): 24025640

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 25, 26, 40, 50, 52, 65, 100, 104, 130, 200, 260, 325, 520, 650, 1300, 2600, 6143, 12286, 24572, 30715, 49144, 61430, 79859, 122860, 153575, 159718, 245720, 307150, 319436, 399295, 614300, 638872, 798590, 1228600, 1597180, 1996475, 3194360, 3992950, 7985900, 15971800]

約数ペア:

[(1, 15971800), (2, 7985900), (4, 3992950), (5, 3194360), (8, 1996475), (10, 1597180), (13, 1228600), (20, 798590), (25, 638872), (26, 614300), (40, 399295), (50, 319436), (52, 307150), (65, 245720), (100, 159718), (104, 153575), (130, 122860), (200, 79859), (260, 61430), (325, 49144), (520, 30715), (650, 24572), (1300, 12286), (2600, 6143)]