19792980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{109961}}^1$

素因数の和:109976

約数の個数: 36

約数和(自身を含む): 60039252

約数和(自身を除く): 40246272

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 109961, 219922, 329883, 439844, 549805, 659766, 989649, 1099610, 1319532, 1649415, 1979298, 2199220, 3298830, 3958596, 4948245, 6597660, 9896490, 19792980]

約数ペア:

[(1, 19792980), (2, 9896490), (3, 6597660), (4, 4948245), (5, 3958596), (6, 3298830), (9, 2199220), (10, 1979298), (12, 1649415), (15, 1319532), (18, 1099610), (20, 989649), (30, 659766), (36, 549805), (45, 439844), (60, 329883), (90, 219922), (180, 109961)]