221555340

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{1230863}}^1$

素因数の和:1230878

約数の個数: 36

約数和(自身を含む): 672051744

約数和(自身を除く): 450496404

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 1230863, 2461726, 3692589, 4923452, 6154315, 7385178, 11077767, 12308630, 14770356, 18462945, 22155534, 24617260, 36925890, 44311068, 55388835, 73851780, 110777670, 221555340]

約数ペア:

[(1, 221555340), (2, 110777670), (3, 73851780), (4, 55388835), (5, 44311068), (6, 36925890), (9, 24617260), (10, 22155534), (12, 18462945), (15, 14770356), (18, 12308630), (20, 11077767), (30, 7385178), (36, 6154315), (45, 4923452), (60, 3692589), (90, 2461726), (180, 1230863)]