854461400

素因数分解:

$2^3\times 5^2\times {\mathrm{13}}^1\times {\mathrm{328639}}^1$

素因数の和:328668

約数の個数: 48

約数和(自身を含む): 2139446400

約数和(自身を除く): 1284985000

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 25, 26, 40, 50, 52, 65, 100, 104, 130, 200, 260, 325, 520, 650, 1300, 2600, 328639, 657278, 1314556, 1643195, 2629112, 3286390, 4272307, 6572780, 8215975, 8544614, 13145560, 16431950, 17089228, 21361535, 32863900, 34178456, 42723070, 65727800, 85446140, 106807675, 170892280, 213615350, 427230700, 854461400]

約数ペア:

[(1, 854461400), (2, 427230700), (4, 213615350), (5, 170892280), (8, 106807675), (10, 85446140), (13, 65727800), (20, 42723070), (25, 34178456), (26, 32863900), (40, 21361535), (50, 17089228), (52, 16431950), (65, 13145560), (100, 8544614), (104, 8215975), (130, 6572780), (200, 4272307), (260, 3286390), (325, 2629112), (520, 1643195), (650, 1314556), (1300, 657278), (2600, 328639)]