20785622020

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{443}}^1\times {\mathrm{21523}}^1$

素因数の和:22084

約数の個数: 48

約数和(自身を含む): 44151750720

約数和(自身を除く): 23366128700

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 443, 545, 886, 1090, 1772, 2180, 2215, 4430, 8860, 21523, 43046, 48287, 86092, 96574, 107615, 193148, 215230, 241435, 430460, 482870, 965740, 2346007, 4692014, 9384028, 9534689, 11730035, 19069378, 23460070, 38138756, 46920140, 47673445, 95346890, 190693780, 1039281101, 2078562202, 4157124404, 5196405505, 10392811010, 20785622020]

約数ペア:

[(1, 20785622020), (2, 10392811010), (4, 5196405505), (5, 4157124404), (10, 2078562202), (20, 1039281101), (109, 190693780), (218, 95346890), (436, 47673445), (443, 46920140), (545, 38138756), (886, 23460070), (1090, 19069378), (1772, 11730035), (2180, 9534689), (2215, 9384028), (4430, 4692014), (8860, 2346007), (21523, 965740), (43046, 482870), (48287, 430460), (86092, 241435), (96574, 215230), (107615, 193148)]