81447184

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^3\times {\mathrm{331}}^1$

素因数の和:385

約数の個数: 80

約数和(自身を含む): 195959680

約数和(自身を除く): 114512496

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 91, 104, 112, 169, 182, 208, 331, 338, 364, 662, 676, 728, 1183, 1324, 1352, 1456, 2197, 2317, 2366, 2648, 2704, 4303, 4394, 4634, 4732, 5296, 8606, 8788, 9268, 9464, 15379, 17212, 17576, 18536, 18928, 30121, 30758, 34424, 35152, 37072, 55939, 60242, 61516, 68848, 111878, 120484, 123032, 223756, 240968, 246064, 391573, 447512, 481936, 727207, 783146, 895024, 1454414, 1566292, 2908828, 3132584, 5090449, 5817656, 6265168, 10180898, 11635312, 20361796, 40723592, 81447184]

約数ペア:

[(1, 81447184), (2, 40723592), (4, 20361796), (7, 11635312), (8, 10180898), (13, 6265168), (14, 5817656), (16, 5090449), (26, 3132584), (28, 2908828), (52, 1566292), (56, 1454414), (91, 895024), (104, 783146), (112, 727207), (169, 481936), (182, 447512), (208, 391573), (331, 246064), (338, 240968), (364, 223756), (662, 123032), (676, 120484), (728, 111878), (1183, 68848), (1324, 61516), (1352, 60242), (1456, 55939), (2197, 37072), (2317, 35152), (2366, 34424), (2648, 30758), (2704, 30121), (4303, 18928), (4394, 18536), (4634, 17576), (4732, 17212), (5296, 15379), (8606, 9464), (8788, 9268)]