64429280

素因数分解:

$2^5\times 5^1\times {\mathrm{139}}^1\times {\mathrm{2897}}^1$

素因数の和:3051

約数の個数: 48

約数和(自身を含む): 153362160

約数和(自身を除く): 88932880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 139, 160, 278, 556, 695, 1112, 1390, 2224, 2780, 2897, 4448, 5560, 5794, 11120, 11588, 14485, 22240, 23176, 28970, 46352, 57940, 92704, 115880, 231760, 402683, 463520, 805366, 1610732, 2013415, 3221464, 4026830, 6442928, 8053660, 12885856, 16107320, 32214640, 64429280]

約数ペア:

[(1, 64429280), (2, 32214640), (4, 16107320), (5, 12885856), (8, 8053660), (10, 6442928), (16, 4026830), (20, 3221464), (32, 2013415), (40, 1610732), (80, 805366), (139, 463520), (160, 402683), (278, 231760), (556, 115880), (695, 92704), (1112, 57940), (1390, 46352), (2224, 28970), (2780, 23176), (2897, 22240), (4448, 14485), (5560, 11588), (5794, 11120)]