21560560

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{38501}}^1$

素因数の和:38521

約数の個数: 40

約数和(自身を含む): 57290976

約数和(自身を除く): 35730416

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 38501, 77002, 154004, 192505, 269507, 308008, 385010, 539014, 616016, 770020, 1078028, 1347535, 1540040, 2156056, 2695070, 3080080, 4312112, 5390140, 10780280, 21560560]

約数ペア:

[(1, 21560560), (2, 10780280), (4, 5390140), (5, 4312112), (7, 3080080), (8, 2695070), (10, 2156056), (14, 1540040), (16, 1347535), (20, 1078028), (28, 770020), (35, 616016), (40, 539014), (56, 385010), (70, 308008), (80, 269507), (112, 192505), (140, 154004), (280, 77002), (560, 38501)]