4444400

素因数分解:

$2^4\times 5^2\times {\mathrm{41}}^1\times {\mathrm{271}}^1$

素因数の和:330

約数の個数: 60

約数和(自身を含む): 10978464

約数和(自身を除く): 6534064

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 41, 50, 80, 82, 100, 164, 200, 205, 271, 328, 400, 410, 542, 656, 820, 1025, 1084, 1355, 1640, 2050, 2168, 2710, 3280, 4100, 4336, 5420, 6775, 8200, 10840, 11111, 13550, 16400, 21680, 22222, 27100, 44444, 54200, 55555, 88888, 108400, 111110, 177776, 222220, 277775, 444440, 555550, 888880, 1111100, 2222200, 4444400]

約数ペア:

[(1, 4444400), (2, 2222200), (4, 1111100), (5, 888880), (8, 555550), (10, 444440), (16, 277775), (20, 222220), (25, 177776), (40, 111110), (41, 108400), (50, 88888), (80, 55555), (82, 54200), (100, 44444), (164, 27100), (200, 22222), (205, 21680), (271, 16400), (328, 13550), (400, 11111), (410, 10840), (542, 8200), (656, 6775), (820, 5420), (1025, 4336), (1084, 4100), (1355, 3280), (1640, 2710), (2050, 2168)]