199943335

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{131}}^1\times {\mathrm{229}}^1$

素因数の和:439

約数の個数: 32

約数和(自身を含む): 256481280

約数和(自身を除く): 56537945

約数列:

[1, 5, 31, 43, 131, 155, 215, 229, 655, 1145, 1333, 4061, 5633, 6665, 7099, 9847, 20305, 28165, 29999, 35495, 49235, 149995, 174623, 305257, 873115, 929969, 1289957, 1526285, 4649845, 6449785, 39988667, 199943335]

約数ペア:

[(1, 199943335), (5, 39988667), (31, 6449785), (43, 4649845), (131, 1526285), (155, 1289957), (215, 929969), (229, 873115), (655, 305257), (1145, 174623), (1333, 149995), (4061, 49235), (5633, 35495), (6665, 29999), (7099, 28165), (9847, 20305)]