251401072

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{307}}^1$

素因数の和:486

約数の個数: 80

約数和(自身を含む): 547520512

約数和(自身を除く): 296119440

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 52, 62, 104, 124, 127, 208, 248, 254, 307, 403, 496, 508, 614, 806, 1016, 1228, 1612, 1651, 2032, 2456, 3224, 3302, 3937, 3991, 4912, 6448, 6604, 7874, 7982, 9517, 13208, 15748, 15964, 19034, 26416, 31496, 31928, 38068, 38989, 51181, 62992, 63856, 76136, 77978, 102362, 123721, 152272, 155956, 204724, 247442, 311912, 409448, 494884, 506857, 623824, 818896, 989768, 1013714, 1208659, 1979536, 2027428, 2417318, 4054856, 4834636, 8109712, 9669272, 15712567, 19338544, 31425134, 62850268, 125700536, 251401072]

約数ペア:

[(1, 251401072), (2, 125700536), (4, 62850268), (8, 31425134), (13, 19338544), (16, 15712567), (26, 9669272), (31, 8109712), (52, 4834636), (62, 4054856), (104, 2417318), (124, 2027428), (127, 1979536), (208, 1208659), (248, 1013714), (254, 989768), (307, 818896), (403, 623824), (496, 506857), (508, 494884), (614, 409448), (806, 311912), (1016, 247442), (1228, 204724), (1612, 155956), (1651, 152272), (2032, 123721), (2456, 102362), (3224, 77978), (3302, 76136), (3937, 63856), (3991, 62992), (4912, 51181), (6448, 38989), (6604, 38068), (7874, 31928), (7982, 31496), (9517, 26416), (13208, 19034), (15748, 15964)]