89080720

素因数分解:

$2^4\times 5^1\times {\mathrm{1113509}}^1$

素因数の和:1113522

約数の個数: 20

約数和(自身を含む): 207112860

約数和(自身を除く): 118032140

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1113509, 2227018, 4454036, 5567545, 8908072, 11135090, 17816144, 22270180, 44540360, 89080720]

約数ペア:

[(1, 89080720), (2, 44540360), (4, 22270180), (5, 17816144), (8, 11135090), (10, 8908072), (16, 5567545), (20, 4454036), (40, 2227018), (80, 1113509)]