221850020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1584643}}^1$

素因数の和:1584659

約数の個数: 24

約数和(自身を含む): 532440384

約数和(自身を除く): 310590364

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1584643, 3169286, 6338572, 7923215, 11092501, 15846430, 22185002, 31692860, 44370004, 55462505, 110925010, 221850020]

約数ペア:

[(1, 221850020), (2, 110925010), (4, 55462505), (5, 44370004), (7, 31692860), (10, 22185002), (14, 15846430), (20, 11092501), (28, 7923215), (35, 6338572), (70, 3169286), (140, 1584643)]