17356780

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{89}}^1\times {\mathrm{199}}^1$

素因数の和:311

約数の個数: 72

約数和(自身を含む): 43092000

約数和(自身を除く): 25735220

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 89, 98, 140, 178, 196, 199, 245, 356, 398, 445, 490, 623, 796, 890, 980, 995, 1246, 1393, 1780, 1990, 2492, 2786, 3115, 3980, 4361, 5572, 6230, 6965, 8722, 9751, 12460, 13930, 17444, 17711, 19502, 21805, 27860, 35422, 39004, 43610, 48755, 70844, 87220, 88555, 97510, 123977, 177110, 195020, 247954, 354220, 495908, 619885, 867839, 1239770, 1735678, 2479540, 3471356, 4339195, 8678390, 17356780]

約数ペア:

[(1, 17356780), (2, 8678390), (4, 4339195), (5, 3471356), (7, 2479540), (10, 1735678), (14, 1239770), (20, 867839), (28, 619885), (35, 495908), (49, 354220), (70, 247954), (89, 195020), (98, 177110), (140, 123977), (178, 97510), (196, 88555), (199, 87220), (245, 70844), (356, 48755), (398, 43610), (445, 39004), (490, 35422), (623, 27860), (796, 21805), (890, 19502), (980, 17711), (995, 17444), (1246, 13930), (1393, 12460), (1780, 9751), (1990, 8722), (2492, 6965), (2786, 6230), (3115, 5572), (3980, 4361)]