128968900

素因数分解:

$2^2\times 5^2\times {\mathrm{271}}^1\times {\mathrm{4759}}^1$

素因数の和:5044

約数の個数: 36

約数和(自身を含む): 280954240

約数和(自身を除く): 151985340

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 271, 542, 1084, 1355, 2710, 4759, 5420, 6775, 9518, 13550, 19036, 23795, 27100, 47590, 95180, 118975, 237950, 475900, 1289689, 2579378, 5158756, 6448445, 12896890, 25793780, 32242225, 64484450, 128968900]

約数ペア:

[(1, 128968900), (2, 64484450), (4, 32242225), (5, 25793780), (10, 12896890), (20, 6448445), (25, 5158756), (50, 2579378), (100, 1289689), (271, 475900), (542, 237950), (1084, 118975), (1355, 95180), (2710, 47590), (4759, 27100), (5420, 23795), (6775, 19036), (9518, 13550)]