219688020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{1220489}}^1$

素因数の和:1220504

約数の個数: 36

約数和(自身を含む): 666387540

約数和(自身を除く): 446699520

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 1220489, 2440978, 3661467, 4881956, 6102445, 7322934, 10984401, 12204890, 14645868, 18307335, 21968802, 24409780, 36614670, 43937604, 54922005, 73229340, 109844010, 219688020]

約数ペア:

[(1, 219688020), (2, 109844010), (3, 73229340), (4, 54922005), (5, 43937604), (6, 36614670), (9, 24409780), (10, 21968802), (12, 18307335), (15, 14645868), (18, 12204890), (20, 10984401), (30, 7322934), (36, 6102445), (45, 4881956), (60, 3661467), (90, 2440978), (180, 1220489)]