2079239860

素因数分解:

$2^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{397}}^1\times {\mathrm{1999}}^1$

素因数の和:2536

約数の個数: 48

約数和(自身を含む): 4413024000

約数和(自身を除く): 2333784140

約数列:

[1, 2, 4, 5, 10, 20, 131, 262, 397, 524, 655, 794, 1310, 1588, 1985, 1999, 2620, 3970, 3998, 7940, 7996, 9995, 19990, 39980, 52007, 104014, 208028, 260035, 261869, 520070, 523738, 793603, 1040140, 1047476, 1309345, 1587206, 2618690, 3174412, 3968015, 5237380, 7936030, 15872060, 103961993, 207923986, 415847972, 519809965, 1039619930, 2079239860]

約数ペア:

[(1, 2079239860), (2, 1039619930), (4, 519809965), (5, 415847972), (10, 207923986), (20, 103961993), (131, 15872060), (262, 7936030), (397, 5237380), (524, 3968015), (655, 3174412), (794, 2618690), (1310, 1587206), (1588, 1309345), (1985, 1047476), (1999, 1040140), (2620, 793603), (3970, 523738), (3998, 520070), (7940, 261869), (7996, 260035), (9995, 208028), (19990, 104014), (39980, 52007)]