201805520

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{51481}}^1$

素因数の和:51508

約数の個数: 60

約数和(自身を含む): 545812164

約数和(自身を除く): 344006644

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 392, 490, 560, 784, 980, 1960, 3920, 51481, 102962, 205924, 257405, 360367, 411848, 514810, 720734, 823696, 1029620, 1441468, 1801835, 2059240, 2522569, 2882936, 3603670, 4118480, 5045138, 5765872, 7207340, 10090276, 12612845, 14414680, 20180552, 25225690, 28829360, 40361104, 50451380, 100902760, 201805520]

約数ペア:

[(1, 201805520), (2, 100902760), (4, 50451380), (5, 40361104), (7, 28829360), (8, 25225690), (10, 20180552), (14, 14414680), (16, 12612845), (20, 10090276), (28, 7207340), (35, 5765872), (40, 5045138), (49, 4118480), (56, 3603670), (70, 2882936), (80, 2522569), (98, 2059240), (112, 1801835), (140, 1441468), (196, 1029620), (245, 823696), (280, 720734), (392, 514810), (490, 411848), (560, 360367), (784, 257405), (980, 205924), (1960, 102962), (3920, 51481)]