131585720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{6619}}^1$

素因数の和:6708

約数の個数: 64

約数和(自身を含む): 343180800

約数和(自身を除く): 211595080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 71, 140, 142, 280, 284, 355, 497, 568, 710, 994, 1420, 1988, 2485, 2840, 3976, 4970, 6619, 9940, 13238, 19880, 26476, 33095, 46333, 52952, 66190, 92666, 132380, 185332, 231665, 264760, 370664, 463330, 469949, 926660, 939898, 1853320, 1879796, 2349745, 3289643, 3759592, 4699490, 6579286, 9398980, 13158572, 16448215, 18797960, 26317144, 32896430, 65792860, 131585720]

約数ペア:

[(1, 131585720), (2, 65792860), (4, 32896430), (5, 26317144), (7, 18797960), (8, 16448215), (10, 13158572), (14, 9398980), (20, 6579286), (28, 4699490), (35, 3759592), (40, 3289643), (56, 2349745), (70, 1879796), (71, 1853320), (140, 939898), (142, 926660), (280, 469949), (284, 463330), (355, 370664), (497, 264760), (568, 231665), (710, 185332), (994, 132380), (1420, 92666), (1988, 66190), (2485, 52952), (2840, 46333), (3976, 33095), (4970, 26476), (6619, 19880), (9940, 13238)]