28914420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{547}}^1\times {\mathrm{881}}^1$

素因数の和:1440

約数の個数: 48

約数和(自身を含む): 81200448

約数和(自身を除く): 52286028

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 547, 881, 1094, 1641, 1762, 2188, 2643, 2735, 3282, 3524, 4405, 5286, 5470, 6564, 8205, 8810, 10572, 10940, 13215, 16410, 17620, 26430, 32820, 52860, 481907, 963814, 1445721, 1927628, 2409535, 2891442, 4819070, 5782884, 7228605, 9638140, 14457210, 28914420]

約数ペア:

[(1, 28914420), (2, 14457210), (3, 9638140), (4, 7228605), (5, 5782884), (6, 4819070), (10, 2891442), (12, 2409535), (15, 1927628), (20, 1445721), (30, 963814), (60, 481907), (547, 52860), (881, 32820), (1094, 26430), (1641, 17620), (1762, 16410), (2188, 13215), (2643, 10940), (2735, 10572), (3282, 8810), (3524, 8205), (4405, 6564), (5286, 5470)]