20154712

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{181}}^1\times {\mathrm{449}}^1$

素因数の和:667

約数の個数: 32

約数和(自身を含む): 39312000

約数和(自身を除く): 19157288

約数列:

[1, 2, 4, 8, 31, 62, 124, 181, 248, 362, 449, 724, 898, 1448, 1796, 3592, 5611, 11222, 13919, 22444, 27838, 44888, 55676, 81269, 111352, 162538, 325076, 650152, 2519339, 5038678, 10077356, 20154712]

約数ペア:

[(1, 20154712), (2, 10077356), (4, 5038678), (8, 2519339), (31, 650152), (62, 325076), (124, 162538), (181, 111352), (248, 81269), (362, 55676), (449, 44888), (724, 27838), (898, 22444), (1448, 13919), (1796, 11222), (3592, 5611)]