20491560

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{56921}}^1$

素因数の和:56938

約数の個数: 48

約数和(自身を含む): 66598740

約数和(自身を除く): 46107180

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 360, 56921, 113842, 170763, 227684, 284605, 341526, 455368, 512289, 569210, 683052, 853815, 1024578, 1138420, 1366104, 1707630, 2049156, 2276840, 2561445, 3415260, 4098312, 5122890, 6830520, 10245780, 20491560]

約数ペア:

[(1, 20491560), (2, 10245780), (3, 6830520), (4, 5122890), (5, 4098312), (6, 3415260), (8, 2561445), (9, 2276840), (10, 2049156), (12, 1707630), (15, 1366104), (18, 1138420), (20, 1024578), (24, 853815), (30, 683052), (36, 569210), (40, 512289), (45, 455368), (60, 341526), (72, 284605), (90, 227684), (120, 170763), (180, 113842), (360, 56921)]