1279856

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{1951}}^1$

素因数の和:2000

約数の個数: 20

約数和(自身を含む): 2541504

約数和(自身を除く): 1261648

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 656, 1951, 3902, 7804, 15608, 31216, 79991, 159982, 319964, 639928, 1279856]

約数ペア:

[(1, 1279856), (2, 639928), (4, 319964), (8, 159982), (16, 79991), (41, 31216), (82, 15608), (164, 7804), (328, 3902), (656, 1951)]