19311760

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{599}}^1$

素因数の和:656

約数の個数: 80

約数和(自身を含む): 49996800

約数和(自身を除く): 30685040

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 40, 52, 62, 65, 80, 104, 124, 130, 155, 208, 248, 260, 310, 403, 496, 520, 599, 620, 806, 1040, 1198, 1240, 1612, 2015, 2396, 2480, 2995, 3224, 4030, 4792, 5990, 6448, 7787, 8060, 9584, 11980, 15574, 16120, 18569, 23960, 31148, 32240, 37138, 38935, 47920, 62296, 74276, 77870, 92845, 124592, 148552, 155740, 185690, 241397, 297104, 311480, 371380, 482794, 622960, 742760, 965588, 1206985, 1485520, 1931176, 2413970, 3862352, 4827940, 9655880, 19311760]

約数ペア:

[(1, 19311760), (2, 9655880), (4, 4827940), (5, 3862352), (8, 2413970), (10, 1931176), (13, 1485520), (16, 1206985), (20, 965588), (26, 742760), (31, 622960), (40, 482794), (52, 371380), (62, 311480), (65, 297104), (80, 241397), (104, 185690), (124, 155740), (130, 148552), (155, 124592), (208, 92845), (248, 77870), (260, 74276), (310, 62296), (403, 47920), (496, 38935), (520, 37138), (599, 32240), (620, 31148), (806, 23960), (1040, 18569), (1198, 16120), (1240, 15574), (1612, 11980), (2015, 9584), (2396, 8060), (2480, 7787), (2995, 6448), (3224, 5990), (4030, 4792)]