256626783

素因数分解:

$3^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{89}}^1\times {\mathrm{1237}}^1$

素因数の和:1376

約数の個数: 48

約数和(自身を含む): 440331840

約数和(自身を除く): 183705057

約数列:

[1, 3, 7, 9, 21, 37, 63, 89, 111, 259, 267, 333, 623, 777, 801, 1237, 1869, 2331, 3293, 3711, 5607, 8659, 9879, 11133, 23051, 25977, 29637, 45769, 69153, 77931, 110093, 137307, 207459, 320383, 330279, 411921, 770651, 961149, 990837, 2311953, 2883447, 4073441, 6935859, 12220323, 28514087, 36660969, 85542261, 256626783]

約数ペア:

[(1, 256626783), (3, 85542261), (7, 36660969), (9, 28514087), (21, 12220323), (37, 6935859), (63, 4073441), (89, 2883447), (111, 2311953), (259, 990837), (267, 961149), (333, 770651), (623, 411921), (777, 330279), (801, 320383), (1237, 207459), (1869, 137307), (2331, 110093), (3293, 77931), (3711, 69153), (5607, 45769), (8659, 29637), (9879, 25977), (11133, 23051)]