8280400

素因数分解:

$2^4\times 5^2\times {\mathrm{127}}^1\times {\mathrm{163}}^1$

素因数の和:308

約数の個数: 60

約数和(自身を含む): 20173312

約数和(自身を除く): 11892912

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 127, 163, 200, 254, 326, 400, 508, 635, 652, 815, 1016, 1270, 1304, 1630, 2032, 2540, 2608, 3175, 3260, 4075, 5080, 6350, 6520, 8150, 10160, 12700, 13040, 16300, 20701, 25400, 32600, 41402, 50800, 65200, 82804, 103505, 165608, 207010, 331216, 414020, 517525, 828040, 1035050, 1656080, 2070100, 4140200, 8280400]

約数ペア:

[(1, 8280400), (2, 4140200), (4, 2070100), (5, 1656080), (8, 1035050), (10, 828040), (16, 517525), (20, 414020), (25, 331216), (40, 207010), (50, 165608), (80, 103505), (100, 82804), (127, 65200), (163, 50800), (200, 41402), (254, 32600), (326, 25400), (400, 20701), (508, 16300), (635, 13040), (652, 12700), (815, 10160), (1016, 8150), (1270, 6520), (1304, 6350), (1630, 5080), (2032, 4075), (2540, 3260), (2608, 3175)]