81516420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{452869}}^1$

素因数の和:452884

約数の個数: 36

約数和(自身を含む): 247267020

約数和(自身を除く): 165750600

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 452869, 905738, 1358607, 1811476, 2264345, 2717214, 4075821, 4528690, 5434428, 6793035, 8151642, 9057380, 13586070, 16303284, 20379105, 27172140, 40758210, 81516420]

約数ペア:

[(1, 81516420), (2, 40758210), (3, 27172140), (4, 20379105), (5, 16303284), (6, 13586070), (9, 9057380), (10, 8151642), (12, 6793035), (15, 5434428), (18, 4528690), (20, 4075821), (30, 2717214), (36, 2264345), (45, 1811476), (60, 1358607), (90, 905738), (180, 452869)]