245912212

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^2\times {\mathrm{37}}^1$

素因数の和:142

約数の個数: 144

約数和(自身を含む): 591669120

約数和(自身を除く): 345756908

約数列:

[1, 2, 4, 7, 13, 14, 19, 26, 28, 31, 37, 38, 52, 62, 74, 76, 91, 124, 133, 148, 182, 217, 247, 259, 266, 364, 403, 434, 481, 494, 518, 532, 589, 703, 806, 868, 961, 962, 988, 1036, 1147, 1178, 1406, 1612, 1729, 1922, 1924, 2294, 2356, 2812, 2821, 3367, 3458, 3844, 4123, 4588, 4921, 5642, 6727, 6734, 6916, 7657, 8029, 8246, 9139, 9842, 11284, 12493, 13454, 13468, 14911, 15314, 16058, 16492, 18259, 18278, 19684, 21793, 24986, 26908, 29822, 30628, 32116, 35557, 36518, 36556, 43586, 49972, 53599, 59644, 63973, 71114, 73036, 87172, 87451, 104377, 107198, 127813, 127946, 142228, 152551, 174902, 208754, 214396, 237367, 248899, 255626, 255892, 283309, 305102, 349804, 417508, 462241, 474734, 497798, 511252, 566618, 610204, 675583, 924482, 949468, 995596, 1133236, 1351166, 1661569, 1848964, 1983163, 2702332, 3235687, 3323138, 3966326, 4729081, 6471374, 6646276, 7932652, 8782579, 9458162, 12942748, 17565158, 18916324, 35130316, 61478053, 122956106, 245912212]

約数ペア:

[(1, 245912212), (2, 122956106), (4, 61478053), (7, 35130316), (13, 18916324), (14, 17565158), (19, 12942748), (26, 9458162), (28, 8782579), (31, 7932652), (37, 6646276), (38, 6471374), (52, 4729081), (62, 3966326), (74, 3323138), (76, 3235687), (91, 2702332), (124, 1983163), (133, 1848964), (148, 1661569), (182, 1351166), (217, 1133236), (247, 995596), (259, 949468), (266, 924482), (364, 675583), (403, 610204), (434, 566618), (481, 511252), (494, 497798), (518, 474734), (532, 462241), (589, 417508), (703, 349804), (806, 305102), (868, 283309), (961, 255892), (962, 255626), (988, 248899), (1036, 237367), (1147, 214396), (1178, 208754), (1406, 174902), (1612, 152551), (1729, 142228), (1922, 127946), (1924, 127813), (2294, 107198), (2356, 104377), (2812, 87451), (2821, 87172), (3367, 73036), (3458, 71114), (3844, 63973), (4123, 59644), (4588, 53599), (4921, 49972), (5642, 43586), (6727, 36556), (6734, 36518), (6916, 35557), (7657, 32116), (8029, 30628), (8246, 29822), (9139, 26908), (9842, 24986), (11284, 21793), (12493, 19684), (13454, 18278), (13468, 18259), (14911, 16492), (15314, 16058)]