78811880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{173}}^1\times {\mathrm{1627}}^1$

素因数の和:1818

約数の個数: 64

約数和(自身を含む): 203955840

約数和(自身を除く): 125143960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 173, 280, 346, 692, 865, 1211, 1384, 1627, 1730, 2422, 3254, 3460, 4844, 6055, 6508, 6920, 8135, 9688, 11389, 12110, 13016, 16270, 22778, 24220, 32540, 45556, 48440, 56945, 65080, 91112, 113890, 227780, 281471, 455560, 562942, 1125884, 1407355, 1970297, 2251768, 2814710, 3940594, 5629420, 7881188, 9851485, 11258840, 15762376, 19702970, 39405940, 78811880]

約数ペア:

[(1, 78811880), (2, 39405940), (4, 19702970), (5, 15762376), (7, 11258840), (8, 9851485), (10, 7881188), (14, 5629420), (20, 3940594), (28, 2814710), (35, 2251768), (40, 1970297), (56, 1407355), (70, 1125884), (140, 562942), (173, 455560), (280, 281471), (346, 227780), (692, 113890), (865, 91112), (1211, 65080), (1384, 56945), (1627, 48440), (1730, 45556), (2422, 32540), (3254, 24220), (3460, 22778), (4844, 16270), (6055, 13016), (6508, 12110), (6920, 11389), (8135, 9688)]