78907960

素因数分解:

$2^3\times 5^1\times {\mathrm{1223}}^1\times {\mathrm{1613}}^1$

素因数の和:2847

約数の個数: 32

約数和(自身を含む): 177798240

約数和(自身を除く): 98890280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1223, 1613, 2446, 3226, 4892, 6115, 6452, 8065, 9784, 12230, 12904, 16130, 24460, 32260, 48920, 64520, 1972699, 3945398, 7890796, 9863495, 15781592, 19726990, 39453980, 78907960]

約数ペア:

[(1, 78907960), (2, 39453980), (4, 19726990), (5, 15781592), (8, 9863495), (10, 7890796), (20, 3945398), (40, 1972699), (1223, 64520), (1613, 48920), (2446, 32260), (3226, 24460), (4892, 16130), (6115, 12904), (6452, 12230), (8065, 9784)]