251052880

素因数分解:

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

素因数の和:669

約数の個数: 120

約数和(自身を含む): 653529600

約数和(自身を除く): 402476720

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 40, 52, 62, 65, 80, 104, 124, 130, 155, 169, 208, 248, 260, 310, 338, 403, 496, 520, 599, 620, 676, 806, 845, 1040, 1198, 1240, 1352, 1612, 1690, 2015, 2396, 2480, 2704, 2995, 3224, 3380, 4030, 4792, 5239, 5990, 6448, 6760, 7787, 8060, 9584, 10478, 11980, 13520, 15574, 16120, 18569, 20956, 23960, 26195, 31148, 32240, 37138, 38935, 41912, 47920, 52390, 62296, 74276, 77870, 83824, 92845, 101231, 104780, 124592, 148552, 155740, 185690, 202462, 209560, 241397, 297104, 311480, 371380, 404924, 419120, 482794, 506155, 622960, 742760, 809848, 965588, 1012310, 1206985, 1485520, 1619696, 1931176, 2024620, 2413970, 3138161, 3862352, 4049240, 4827940, 6276322, 8098480, 9655880, 12552644, 15690805, 19311760, 25105288, 31381610, 50210576, 62763220, 125526440, 251052880]

約数ペア:

[(1, 251052880), (2, 125526440), (4, 62763220), (5, 50210576), (8, 31381610), (10, 25105288), (13, 19311760), (16, 15690805), (20, 12552644), (26, 9655880), (31, 8098480), (40, 6276322), (52, 4827940), (62, 4049240), (65, 3862352), (80, 3138161), (104, 2413970), (124, 2024620), (130, 1931176), (155, 1619696), (169, 1485520), (208, 1206985), (248, 1012310), (260, 965588), (310, 809848), (338, 742760), (403, 622960), (496, 506155), (520, 482794), (599, 419120), (620, 404924), (676, 371380), (806, 311480), (845, 297104), (1040, 241397), (1198, 209560), (1240, 202462), (1352, 185690), (1612, 155740), (1690, 148552), (2015, 124592), (2396, 104780), (2480, 101231), (2704, 92845), (2995, 83824), (3224, 77870), (3380, 74276), (4030, 62296), (4792, 52390), (5239, 47920), (5990, 41912), (6448, 38935), (6760, 37138), (7787, 32240), (8060, 31148), (9584, 26195), (10478, 23960), (11980, 20956), (13520, 18569), (15574, 16120)]