12766400

素因数分解:

$2^6\times 5^2\times {\mathrm{79}}^1\times {\mathrm{101}}^1$

素因数の和:202

約数の個数: 84

約数和(自身を含む): 32125920

約数和(自身を除く): 19359520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 79, 80, 100, 101, 158, 160, 200, 202, 316, 320, 395, 400, 404, 505, 632, 790, 800, 808, 1010, 1264, 1580, 1600, 1616, 1975, 2020, 2525, 2528, 3160, 3232, 3950, 4040, 5050, 5056, 6320, 6464, 7900, 7979, 8080, 10100, 12640, 15800, 15958, 16160, 20200, 25280, 31600, 31916, 32320, 39895, 40400, 63200, 63832, 79790, 80800, 126400, 127664, 159580, 161600, 199475, 255328, 319160, 398950, 510656, 638320, 797900, 1276640, 1595800, 2553280, 3191600, 6383200, 12766400]

約数ペア:

[(1, 12766400), (2, 6383200), (4, 3191600), (5, 2553280), (8, 1595800), (10, 1276640), (16, 797900), (20, 638320), (25, 510656), (32, 398950), (40, 319160), (50, 255328), (64, 199475), (79, 161600), (80, 159580), (100, 127664), (101, 126400), (158, 80800), (160, 79790), (200, 63832), (202, 63200), (316, 40400), (320, 39895), (395, 32320), (400, 31916), (404, 31600), (505, 25280), (632, 20200), (790, 16160), (800, 15958), (808, 15800), (1010, 12640), (1264, 10100), (1580, 8080), (1600, 7979), (1616, 7900), (1975, 6464), (2020, 6320), (2525, 5056), (2528, 5050), (3160, 4040), (3232, 3950)]