81521286

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{251}}^1$

素因数の和:330

約数の個数: 128

約数和(自身を含む): 220631040

約数和(自身を除く): 139109754

約数列:

[1, 2, 3, 6, 7, 11, 14, 19, 21, 22, 33, 37, 38, 42, 57, 66, 74, 77, 111, 114, 133, 154, 209, 222, 231, 251, 259, 266, 399, 407, 418, 462, 502, 518, 627, 703, 753, 777, 798, 814, 1221, 1254, 1406, 1463, 1506, 1554, 1757, 2109, 2442, 2761, 2849, 2926, 3514, 4218, 4389, 4769, 4921, 5271, 5522, 5698, 7733, 8283, 8547, 8778, 9287, 9538, 9842, 10542, 14307, 14763, 15466, 16566, 17094, 18574, 19327, 23199, 27861, 28614, 29526, 33383, 38654, 46398, 52459, 54131, 55722, 57981, 65009, 66766, 100149, 102157, 104918, 108262, 115962, 130018, 157377, 162393, 176453, 195027, 200298, 204314, 306471, 314754, 324786, 352906, 367213, 390054, 529359, 612942, 715099, 734426, 1058718, 1101639, 1235171, 1430198, 1940983, 2145297, 2203278, 2470342, 3705513, 3881966, 4290594, 5822949, 7411026, 11645898, 13586881, 27173762, 40760643, 81521286]

約数ペア:

[(1, 81521286), (2, 40760643), (3, 27173762), (6, 13586881), (7, 11645898), (11, 7411026), (14, 5822949), (19, 4290594), (21, 3881966), (22, 3705513), (33, 2470342), (37, 2203278), (38, 2145297), (42, 1940983), (57, 1430198), (66, 1235171), (74, 1101639), (77, 1058718), (111, 734426), (114, 715099), (133, 612942), (154, 529359), (209, 390054), (222, 367213), (231, 352906), (251, 324786), (259, 314754), (266, 306471), (399, 204314), (407, 200298), (418, 195027), (462, 176453), (502, 162393), (518, 157377), (627, 130018), (703, 115962), (753, 108262), (777, 104918), (798, 102157), (814, 100149), (1221, 66766), (1254, 65009), (1406, 57981), (1463, 55722), (1506, 54131), (1554, 52459), (1757, 46398), (2109, 38654), (2442, 33383), (2761, 29526), (2849, 28614), (2926, 27861), (3514, 23199), (4218, 19327), (4389, 18574), (4769, 17094), (4921, 16566), (5271, 15466), (5522, 14763), (5698, 14307), (7733, 10542), (8283, 9842), (8547, 9538), (8778, 9287)]