51065600

素因数分解:

$2^8\times 5^2\times {\mathrm{79}}^1\times {\mathrm{101}}^1$

素因数の和:206

約数の個数: 108

約数和(自身を含む): 129262560

約数和(自身を除く): 78196960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 79, 80, 100, 101, 128, 158, 160, 200, 202, 256, 316, 320, 395, 400, 404, 505, 632, 640, 790, 800, 808, 1010, 1264, 1280, 1580, 1600, 1616, 1975, 2020, 2525, 2528, 3160, 3200, 3232, 3950, 4040, 5050, 5056, 6320, 6400, 6464, 7900, 7979, 8080, 10100, 10112, 12640, 12928, 15800, 15958, 16160, 20200, 20224, 25280, 25856, 31600, 31916, 32320, 39895, 40400, 50560, 63200, 63832, 64640, 79790, 80800, 101120, 126400, 127664, 129280, 159580, 161600, 199475, 252800, 255328, 319160, 323200, 398950, 505600, 510656, 638320, 646400, 797900, 1021312, 1276640, 1595800, 2042624, 2553280, 3191600, 5106560, 6383200, 10213120, 12766400, 25532800, 51065600]

約数ペア:

[(1, 51065600), (2, 25532800), (4, 12766400), (5, 10213120), (8, 6383200), (10, 5106560), (16, 3191600), (20, 2553280), (25, 2042624), (32, 1595800), (40, 1276640), (50, 1021312), (64, 797900), (79, 646400), (80, 638320), (100, 510656), (101, 505600), (128, 398950), (158, 323200), (160, 319160), (200, 255328), (202, 252800), (256, 199475), (316, 161600), (320, 159580), (395, 129280), (400, 127664), (404, 126400), (505, 101120), (632, 80800), (640, 79790), (790, 64640), (800, 63832), (808, 63200), (1010, 50560), (1264, 40400), (1280, 39895), (1580, 32320), (1600, 31916), (1616, 31600), (1975, 25856), (2020, 25280), (2525, 20224), (2528, 20200), (3160, 16160), (3200, 15958), (3232, 15800), (3950, 12928), (4040, 12640), (5050, 10112), (5056, 10100), (6320, 8080), (6400, 7979), (6464, 7900)]