90078400

素因数分解:

$2^6\times 5^2\times {\mathrm{56299}}^1$

素因数の和:56321

約数の個数: 42

約数和(自身を含む): 221653100

約数和(自身を除く): 131574700

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 160, 200, 320, 400, 800, 1600, 56299, 112598, 225196, 281495, 450392, 562990, 900784, 1125980, 1407475, 1801568, 2251960, 2814950, 3603136, 4503920, 5629900, 9007840, 11259800, 18015680, 22519600, 45039200, 90078400]

約数ペア:

[(1, 90078400), (2, 45039200), (4, 22519600), (5, 18015680), (8, 11259800), (10, 9007840), (16, 5629900), (20, 4503920), (25, 3603136), (32, 2814950), (40, 2251960), (50, 1801568), (64, 1407475), (80, 1125980), (100, 900784), (160, 562990), (200, 450392), (320, 281495), (400, 225196), (800, 112598), (1600, 56299)]