5555500

素因数分解:

$2^2\times 5^3\times {\mathrm{41}}^1\times {\mathrm{271}}^1$

素因数の和:331

約数の個数: 48

約数和(自身を含む): 12475008

約数和(自身を除く): 6919508

約数列:

[1, 2, 4, 5, 10, 20, 25, 41, 50, 82, 100, 125, 164, 205, 250, 271, 410, 500, 542, 820, 1025, 1084, 1355, 2050, 2710, 4100, 5125, 5420, 6775, 10250, 11111, 13550, 20500, 22222, 27100, 33875, 44444, 55555, 67750, 111110, 135500, 222220, 277775, 555550, 1111100, 1388875, 2777750, 5555500]

約数ペア:

[(1, 5555500), (2, 2777750), (4, 1388875), (5, 1111100), (10, 555550), (20, 277775), (25, 222220), (41, 135500), (50, 111110), (82, 67750), (100, 55555), (125, 44444), (164, 33875), (205, 27100), (250, 22222), (271, 20500), (410, 13550), (500, 11111), (542, 10250), (820, 6775), (1025, 5420), (1084, 5125), (1355, 4100), (2050, 2710)]