64283020

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{52691}}^1$

素因数の和:52761

約数の個数: 24

約数和(自身を含む): 137209968

約数和(自身を除く): 72926948

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 52691, 105382, 210764, 263455, 526910, 1053820, 3214151, 6428302, 12856604, 16070755, 32141510, 64283020]

約数ペア:

[(1, 64283020), (2, 32141510), (4, 16070755), (5, 12856604), (10, 6428302), (20, 3214151), (61, 1053820), (122, 526910), (244, 263455), (305, 210764), (610, 105382), (1220, 52691)]