51159920

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{421}}^1$

素因数の和:479

約数の個数: 120

約数和(自身を含む): 143169408

約数和(自身を除く): 92009488

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 35, 40, 49, 56, 62, 70, 80, 98, 112, 124, 140, 155, 196, 217, 245, 248, 280, 310, 392, 421, 434, 490, 496, 560, 620, 784, 842, 868, 980, 1085, 1240, 1519, 1684, 1736, 1960, 2105, 2170, 2480, 2947, 3038, 3368, 3472, 3920, 4210, 4340, 5894, 6076, 6736, 7595, 8420, 8680, 11788, 12152, 13051, 14735, 15190, 16840, 17360, 20629, 23576, 24304, 26102, 29470, 30380, 33680, 41258, 47152, 52204, 58940, 60760, 65255, 82516, 91357, 103145, 104408, 117880, 121520, 130510, 165032, 182714, 206290, 208816, 235760, 261020, 330064, 365428, 412580, 456785, 522040, 639499, 730856, 825160, 913570, 1044080, 1278998, 1461712, 1650320, 1827140, 2557996, 3197495, 3654280, 5115992, 6394990, 7308560, 10231984, 12789980, 25579960, 51159920]

約数ペア:

[(1, 51159920), (2, 25579960), (4, 12789980), (5, 10231984), (7, 7308560), (8, 6394990), (10, 5115992), (14, 3654280), (16, 3197495), (20, 2557996), (28, 1827140), (31, 1650320), (35, 1461712), (40, 1278998), (49, 1044080), (56, 913570), (62, 825160), (70, 730856), (80, 639499), (98, 522040), (112, 456785), (124, 412580), (140, 365428), (155, 330064), (196, 261020), (217, 235760), (245, 208816), (248, 206290), (280, 182714), (310, 165032), (392, 130510), (421, 121520), (434, 117880), (490, 104408), (496, 103145), (560, 91357), (620, 82516), (784, 65255), (842, 60760), (868, 58940), (980, 52204), (1085, 47152), (1240, 41258), (1519, 33680), (1684, 30380), (1736, 29470), (1960, 26102), (2105, 24304), (2170, 23576), (2480, 20629), (2947, 17360), (3038, 16840), (3368, 15190), (3472, 14735), (3920, 13051), (4210, 12152), (4340, 11788), (5894, 8680), (6076, 8420), (6736, 7595)]