1276480

素因数分解:

$2^6\times 5^1\times {\mathrm{3989}}^1$

素因数の和:4006

約数の個数: 28

約数和(自身を含む): 3040380

約数和(自身を除く): 1763900

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 3989, 7978, 15956, 19945, 31912, 39890, 63824, 79780, 127648, 159560, 255296, 319120, 638240, 1276480]

約数ペア:

[(1, 1276480), (2, 638240), (4, 319120), (5, 255296), (8, 159560), (10, 127648), (16, 79780), (20, 63824), (32, 39890), (40, 31912), (64, 19945), (80, 15956), (160, 7978), (320, 3989)]