30721360

素因数分解:

$2^4\times 5^1\times {\mathrm{384017}}^1$

素因数の和:384030

約数の個数: 20

約数和(自身を含む): 71427348

約数和(自身を除く): 40705988

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 384017, 768034, 1536068, 1920085, 3072136, 3840170, 6144272, 7680340, 15360680, 30721360]

約数ペア:

[(1, 30721360), (2, 15360680), (4, 7680340), (5, 6144272), (8, 3840170), (10, 3072136), (16, 1920085), (20, 1536068), (40, 768034), (80, 384017)]