255688000

素因数分解:

$2^6\times 5^3\times {\mathrm{31}}^1\times {\mathrm{1031}}^1$

素因数の和:1089

約数の個数: 112

約数和(自身を含む): 654271488

約数和(自身を除く): 398583488

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 32, 40, 50, 62, 64, 80, 100, 124, 125, 155, 160, 200, 248, 250, 310, 320, 400, 496, 500, 620, 775, 800, 992, 1000, 1031, 1240, 1550, 1600, 1984, 2000, 2062, 2480, 3100, 3875, 4000, 4124, 4960, 5155, 6200, 7750, 8000, 8248, 9920, 10310, 12400, 15500, 16496, 20620, 24800, 25775, 31000, 31961, 32992, 41240, 49600, 51550, 62000, 63922, 65984, 82480, 103100, 124000, 127844, 128875, 159805, 164960, 206200, 248000, 255688, 257750, 319610, 329920, 412400, 511376, 515500, 639220, 799025, 824800, 1022752, 1031000, 1278440, 1598050, 1649600, 2045504, 2062000, 2556880, 3196100, 3995125, 4124000, 5113760, 6392200, 7990250, 8248000, 10227520, 12784400, 15980500, 25568800, 31961000, 51137600, 63922000, 127844000, 255688000]

約数ペア:

[(1, 255688000), (2, 127844000), (4, 63922000), (5, 51137600), (8, 31961000), (10, 25568800), (16, 15980500), (20, 12784400), (25, 10227520), (31, 8248000), (32, 7990250), (40, 6392200), (50, 5113760), (62, 4124000), (64, 3995125), (80, 3196100), (100, 2556880), (124, 2062000), (125, 2045504), (155, 1649600), (160, 1598050), (200, 1278440), (248, 1031000), (250, 1022752), (310, 824800), (320, 799025), (400, 639220), (496, 515500), (500, 511376), (620, 412400), (775, 329920), (800, 319610), (992, 257750), (1000, 255688), (1031, 248000), (1240, 206200), (1550, 164960), (1600, 159805), (1984, 128875), (2000, 127844), (2062, 124000), (2480, 103100), (3100, 82480), (3875, 65984), (4000, 63922), (4124, 62000), (4960, 51550), (5155, 49600), (6200, 41240), (7750, 32992), (8000, 31961), (8248, 31000), (9920, 25775), (10310, 24800), (12400, 20620), (15500, 16496)]