30812920

素因数分解:

$2^3\times 5^1\times {\mathrm{83}}^1\times {\mathrm{9281}}^1$

素因数の和:9375

約数の個数: 32

約数和(自身を含む): 70171920

約数和(自身を除く): 39359000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 83, 166, 332, 415, 664, 830, 1660, 3320, 9281, 18562, 37124, 46405, 74248, 92810, 185620, 371240, 770323, 1540646, 3081292, 3851615, 6162584, 7703230, 15406460, 30812920]

約数ペア:

[(1, 30812920), (2, 15406460), (4, 7703230), (5, 6162584), (8, 3851615), (10, 3081292), (20, 1540646), (40, 770323), (83, 371240), (166, 185620), (332, 92810), (415, 74248), (664, 46405), (830, 37124), (1660, 18562), (3320, 9281)]