129164937260

素因数分解:

$2^2\times 5^1\times {\mathrm{197}}^1\times {\mathrm{419}}^1\times {\mathrm{78241}}^1$

素因数の和:78866

約数の個数: 48

約数和(自身を含む): 273277398240

約数和(自身を除く): 144112460980

約数列:

[1, 2, 4, 5, 10, 20, 197, 394, 419, 788, 838, 985, 1676, 1970, 2095, 3940, 4190, 8380, 78241, 82543, 156482, 165086, 312964, 330172, 391205, 412715, 782410, 825430, 1564820, 1650860, 15413477, 30826954, 32782979, 61653908, 65565958, 77067385, 131131916, 154134770, 163914895, 308269540, 327829790, 655659580, 6458246863, 12916493726, 25832987452, 32291234315, 64582468630, 129164937260]

約数ペア:

[(1, 129164937260), (2, 64582468630), (4, 32291234315), (5, 25832987452), (10, 12916493726), (20, 6458246863), (197, 655659580), (394, 327829790), (419, 308269540), (788, 163914895), (838, 154134770), (985, 131131916), (1676, 77067385), (1970, 65565958), (2095, 61653908), (3940, 32782979), (4190, 30826954), (8380, 15413477), (78241, 1650860), (82543, 1564820), (156482, 825430), (165086, 782410), (312964, 412715), (330172, 391205)]