804914860

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{19433}}^1$

素因数の和:19570

約数の個数: 48

約数和(自身を含む): 1795701600

約数和(自身を除く): 990786740

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 109, 190, 218, 380, 436, 545, 1090, 2071, 2180, 4142, 8284, 10355, 19433, 20710, 38866, 41420, 77732, 97165, 194330, 369227, 388660, 738454, 1476908, 1846135, 2118197, 3692270, 4236394, 7384540, 8472788, 10590985, 21181970, 40245743, 42363940, 80491486, 160982972, 201228715, 402457430, 804914860]

約数ペア:

[(1, 804914860), (2, 402457430), (4, 201228715), (5, 160982972), (10, 80491486), (19, 42363940), (20, 40245743), (38, 21181970), (76, 10590985), (95, 8472788), (109, 7384540), (190, 4236394), (218, 3692270), (380, 2118197), (436, 1846135), (545, 1476908), (1090, 738454), (2071, 388660), (2180, 369227), (4142, 194330), (8284, 97165), (10355, 77732), (19433, 41420), (20710, 38866)]