221973220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1585523}}^1$

素因数の和:1585539

約数の個数: 24

約数和(自身を含む): 532736064

約数和(自身を除く): 310762844

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1585523, 3171046, 6342092, 7927615, 11098661, 15855230, 22197322, 31710460, 44394644, 55493305, 110986610, 221973220]

約数ペア:

[(1, 221973220), (2, 110986610), (4, 55493305), (5, 44394644), (7, 31710460), (10, 22197322), (14, 15855230), (20, 11098661), (28, 7927615), (35, 6342092), (70, 3171046), (140, 1585523)]