30785680

素因数分解:

$2^4\times 5^1\times {\mathrm{384821}}^1$

素因数の和:384834

約数の個数: 20

約数和(自身を含む): 71576892

約数和(自身を除く): 40791212

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 384821, 769642, 1539284, 1924105, 3078568, 3848210, 6157136, 7696420, 15392840, 30785680]

約数ペア:

[(1, 30785680), (2, 15392840), (4, 7696420), (5, 6157136), (8, 3848210), (10, 3078568), (16, 1924105), (20, 1539284), (40, 769642), (80, 384821)]