20986080

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{43721}}^1$

素因数の和:43739

約数の個数: 48

約数和(自身を含む): 66107664

約数和(自身を除く): 45121584

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 80, 96, 120, 160, 240, 480, 43721, 87442, 131163, 174884, 218605, 262326, 349768, 437210, 524652, 655815, 699536, 874420, 1049304, 1311630, 1399072, 1748840, 2098608, 2623260, 3497680, 4197216, 5246520, 6995360, 10493040, 20986080]

約数ペア:

[(1, 20986080), (2, 10493040), (3, 6995360), (4, 5246520), (5, 4197216), (6, 3497680), (8, 2623260), (10, 2098608), (12, 1748840), (15, 1399072), (16, 1311630), (20, 1049304), (24, 874420), (30, 699536), (32, 655815), (40, 524652), (48, 437210), (60, 349768), (80, 262326), (96, 218605), (120, 174884), (160, 131163), (240, 87442), (480, 43721)]