289622720

素因数分解:

$2^6\times 5^1\times {\mathrm{905071}}^1$

素因数の和:905088

約数の個数: 28

約数和(自身を含む): 689664864

約数和(自身を除く): 400042144

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 905071, 1810142, 3620284, 4525355, 7240568, 9050710, 14481136, 18101420, 28962272, 36202840, 57924544, 72405680, 144811360, 289622720]

約数ペア:

[(1, 289622720), (2, 144811360), (4, 72405680), (5, 57924544), (8, 36202840), (10, 28962272), (16, 18101420), (20, 14481136), (32, 9050710), (40, 7240568), (64, 4525355), (80, 3620284), (160, 1810142), (320, 905071)]