156938320720

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{439}}^1\times {\mathrm{108991}}^1$

素因数の和:109484

約数の個数: 80

約数和(自身を含む): 374636021760

約数和(自身を除く): 217697701040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 439, 656, 820, 878, 1640, 1756, 2195, 3280, 3512, 4390, 7024, 8780, 17560, 17999, 35120, 35998, 71996, 89995, 108991, 143992, 179990, 217982, 287984, 359980, 435964, 544955, 719960, 871928, 1089910, 1439920, 1743856, 2179820, 4359640, 4468631, 8719280, 8937262, 17874524, 22343155, 35749048, 44686310, 47847049, 71498096, 89372620, 95694098, 178745240, 191388196, 239235245, 357490480, 382776392, 478470490, 765552784, 956940980, 1913881960, 1961729009, 3827763920, 3923458018, 7846916036, 9808645045, 15693832072, 19617290090, 31387664144, 39234580180, 78469160360, 156938320720]

約数ペア:

[(1, 156938320720), (2, 78469160360), (4, 39234580180), (5, 31387664144), (8, 19617290090), (10, 15693832072), (16, 9808645045), (20, 7846916036), (40, 3923458018), (41, 3827763920), (80, 1961729009), (82, 1913881960), (164, 956940980), (205, 765552784), (328, 478470490), (410, 382776392), (439, 357490480), (656, 239235245), (820, 191388196), (878, 178745240), (1640, 95694098), (1756, 89372620), (2195, 71498096), (3280, 47847049), (3512, 44686310), (4390, 35749048), (7024, 22343155), (8780, 17874524), (17560, 8937262), (17999, 8719280), (35120, 4468631), (35998, 4359640), (71996, 2179820), (89995, 1743856), (108991, 1439920), (143992, 1089910), (179990, 871928), (217982, 719960), (287984, 544955), (359980, 435964)]