428780716

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{79}}^1$

素因数の和:184

約数の個数: 144

約数和(自身を含む): 996925440

約数和(自身を除く): 568144724

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 31, 37, 52, 62, 74, 79, 91, 124, 148, 158, 169, 182, 217, 259, 316, 338, 364, 403, 434, 481, 518, 553, 676, 806, 868, 962, 1027, 1036, 1106, 1147, 1183, 1612, 1924, 2054, 2212, 2294, 2366, 2449, 2821, 2923, 3367, 4108, 4588, 4732, 4898, 5239, 5642, 5846, 6253, 6734, 7189, 8029, 9796, 10478, 11284, 11692, 12506, 13351, 13468, 14378, 14911, 16058, 17143, 20461, 20956, 25012, 26702, 28756, 29822, 31837, 32116, 34286, 36673, 37999, 40922, 43771, 53404, 59644, 63674, 68572, 73346, 75998, 81844, 87542, 90613, 93457, 104377, 127348, 146692, 151996, 175084, 181226, 186914, 193843, 208754, 222859, 265993, 362452, 373828, 387686, 413881, 417508, 445718, 493987, 531986, 634291, 775372, 827762, 891436, 987974, 1063972, 1177969, 1268582, 1356901, 1655524, 1975948, 2355938, 2537164, 2713802, 2897167, 3457909, 4711876, 5427604, 5794334, 6915818, 8245783, 11588668, 13831636, 15313597, 16491566, 30627194, 32983132, 61254388, 107195179, 214390358, 428780716]

約数ペア:

[(1, 428780716), (2, 214390358), (4, 107195179), (7, 61254388), (13, 32983132), (14, 30627194), (26, 16491566), (28, 15313597), (31, 13831636), (37, 11588668), (52, 8245783), (62, 6915818), (74, 5794334), (79, 5427604), (91, 4711876), (124, 3457909), (148, 2897167), (158, 2713802), (169, 2537164), (182, 2355938), (217, 1975948), (259, 1655524), (316, 1356901), (338, 1268582), (364, 1177969), (403, 1063972), (434, 987974), (481, 891436), (518, 827762), (553, 775372), (676, 634291), (806, 531986), (868, 493987), (962, 445718), (1027, 417508), (1036, 413881), (1106, 387686), (1147, 373828), (1183, 362452), (1612, 265993), (1924, 222859), (2054, 208754), (2212, 193843), (2294, 186914), (2366, 181226), (2449, 175084), (2821, 151996), (2923, 146692), (3367, 127348), (4108, 104377), (4588, 93457), (4732, 90613), (4898, 87542), (5239, 81844), (5642, 75998), (5846, 73346), (6253, 68572), (6734, 63674), (7189, 59644), (8029, 53404), (9796, 43771), (10478, 40922), (11284, 37999), (11692, 36673), (12506, 34286), (13351, 32116), (13468, 31837), (14378, 29822), (14911, 28756), (16058, 26702), (17143, 25012), (20461, 20956)]