11908120

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{599}}^1$

素因数の和:688

約数の個数: 64

約数和(自身を含む): 31104000

約数和(自身を除く): 19195880

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, 599, 710, 994, 1198, 1420, 1988, 2396, 2485, 2840, 2995, 3976, 4193, 4792, 4970, 5990, 8386, 9940, 11980, 16772, 19880, 20965, 23960, 33544, 41930, 42529, 83860, 85058, 167720, 170116, 212645, 297703, 340232, 425290, 595406, 850580, 1190812, 1488515, 1701160, 2381624, 2977030, 5954060, 11908120]

約数ペア:

[(1, 11908120), (2, 5954060), (4, 2977030), (5, 2381624), (7, 1701160), (8, 1488515), (10, 1190812), (14, 850580), (20, 595406), (28, 425290), (35, 340232), (40, 297703), (56, 212645), (70, 170116), (71, 167720), (140, 85058), (142, 83860), (280, 42529), (284, 41930), (355, 33544), (497, 23960), (568, 20965), (599, 19880), (710, 16772), (994, 11980), (1198, 9940), (1420, 8386), (1988, 5990), (2396, 4970), (2485, 4792), (2840, 4193), (2995, 3976)]