25846400

素因数分解:

$2^7\times 5^2\times {\mathrm{41}}^1\times {\mathrm{197}}^1$

素因数の和:262

約数の個数: 96

約数和(自身を含む): 65737980

約数和(自身を除く): 39891580

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 41, 50, 64, 80, 82, 100, 128, 160, 164, 197, 200, 205, 320, 328, 394, 400, 410, 640, 656, 788, 800, 820, 985, 1025, 1312, 1576, 1600, 1640, 1970, 2050, 2624, 3152, 3200, 3280, 3940, 4100, 4925, 5248, 6304, 6560, 7880, 8077, 8200, 9850, 12608, 13120, 15760, 16154, 16400, 19700, 25216, 26240, 31520, 32308, 32800, 39400, 40385, 63040, 64616, 65600, 78800, 80770, 126080, 129232, 131200, 157600, 161540, 201925, 258464, 315200, 323080, 403850, 516928, 630400, 646160, 807700, 1033856, 1292320, 1615400, 2584640, 3230800, 5169280, 6461600, 12923200, 25846400]

約数ペア:

[(1, 25846400), (2, 12923200), (4, 6461600), (5, 5169280), (8, 3230800), (10, 2584640), (16, 1615400), (20, 1292320), (25, 1033856), (32, 807700), (40, 646160), (41, 630400), (50, 516928), (64, 403850), (80, 323080), (82, 315200), (100, 258464), (128, 201925), (160, 161540), (164, 157600), (197, 131200), (200, 129232), (205, 126080), (320, 80770), (328, 78800), (394, 65600), (400, 64616), (410, 63040), (640, 40385), (656, 39400), (788, 32800), (800, 32308), (820, 31520), (985, 26240), (1025, 25216), (1312, 19700), (1576, 16400), (1600, 16154), (1640, 15760), (1970, 13120), (2050, 12608), (2624, 9850), (3152, 8200), (3200, 8077), (3280, 7880), (3940, 6560), (4100, 6304), (4925, 5248)]