13220120

素因数分解:

$2^3\times 5^1\times {\mathrm{349}}^1\times {\mathrm{947}}^1$

素因数の和:1307

約数の個数: 32

約数和(自身を含む): 29862000

約数和(自身を除く): 16641880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 349, 698, 947, 1396, 1745, 1894, 2792, 3490, 3788, 4735, 6980, 7576, 9470, 13960, 18940, 37880, 330503, 661006, 1322012, 1652515, 2644024, 3305030, 6610060, 13220120]

約数ペア:

[(1, 13220120), (2, 6610060), (4, 3305030), (5, 2644024), (8, 1652515), (10, 1322012), (20, 661006), (40, 330503), (349, 37880), (698, 18940), (947, 13960), (1396, 9470), (1745, 7576), (1894, 6980), (2792, 4735), (3490, 3788)]